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Directory:Fuel Efficiency Retrofits

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Fuel efficiency is amount of work obtained for a quantity of fuel as compared to the energy content of the fuel; efficiency specifically considers wasted energy. In autos, fuel efficiency retrofits allow a MPG increase by enhancing the combustion efficiency and speeding up the burn rate; more of the carbon fuel is undergoing a complete combustion at a raster rate, therefore by the time the combustion gases are ready to exit the exhaust valves, the gases have slightly more time to cool than with un-enhanced carbon fuel. The most noticeable effect of fuel enhancement is a practical elimination of CO emissions, and a slight increase in the immediate CO2 emission; because there is a significant reduction in net carbon fuel requirements, there is an associated NET reduction in CO2 emissions considering the immediate effects!

A marketplace is quickly growing for electrolytic retrofit technologies, among other concepts.

There are many aftermarket retrofit designs, are are currently being sold as "fuel saving devices". Some have a negligible or even harmful effects on fuel efficiency. Others can be beneficial and boost efficiency. Fuel additives are materials which are added to the fuel include tin, magnesium and platinum compounds. The claimed purpose of these devices is generally to improve the energy density of the fuel by virtue of the materials added. Magnets attached to fuel lines have been claimed to improve fuel economy by aligning fuel molecules. Vapour transfer devices claim to improve fuel efficiency by changing the way that liquid fuel converts to fuel vapour. These include "Swirlers" to increase turbulence in the intake manifold and heaters Lean-burn devices change the air-fuel ratio to lean-burn, an engine can increase its fuel efficiency. The main drawback of lean burning is that it greatly increases an engine's pollutant emissions of oxides of nitrogen (NOx). Friction reducing measures reduces fuel consumption. Hardened silicon tires have lower rolling resistance than standard rubber tires. The typical lubricating oil used in engines has decreased in viscosity over the years. However, using a lubricant with lower viscosity than the lubricant specified by a vehicle manufacturer may damage an engine.

Requirements of Gas Mileage Increase

It is not the addition of a fuel enhancer that increases gas mileage. Gas mileage improvement is the direct result of injecting less fuel into the cylinders. Therefore after the addition of a fuel enhancer, the ECU or the carburetor must be adjusted according to the degree of fuel enhancement. If exhaust gas analysis equipment is not available to maximize results, slight air/fuel augmentation can be done by offsetting the Oxygen sensor signal or slightly leaning the carburetor manual adjustments. If exhaust gas analysis equipment is available, optimal results will be achieved by re-flashing custom fuel maps into an ECU or adjusting the carburetor precisely according to the data. This procedure is more difficult and typically requires a custom ECU or a chip with a computer interface, but none the less substantial fuel savings can be achieved simply by offsetting the Oxygen sensor signal or minor tweaks to the carburetor!

Retrofits

Index of installations available for existing engines to increase fuel efficiency.

Listings should be accompanied by specific data from performance.

  • How many cars have been fitted?
  • What kind of cars can be fitted?
  • Unit cost?
  • Installation time?
  • Ease/difficulty of install?
  • Durability?
  • Issues?
  • Stage of development (early prototype to mass market)
  • PERFORMANCE?

Overview

  • Showroom for Eco-Conscious Truckers - Cascade Sierra Solutions' "outreach center" for green trucking technologies helps truckers save 25 percent on fuel bills with energy-saving retrofits. Solutions include auxiliary power for idle reduction, improved aerodynamics, automatic tire inflation, single wide-base tires, low-viscosity synthetic lubricants, and lighter-weight components. (TreeHugger; Feb. 5, 2007)

Types of Retrofits

Additives

See Directory:Fuel Efficiency Additives

Engines

See Directory:Engines

Image:MassiveYetTinyEngine95x95_byKevn.jpg

Electronics

  • Fuel Efficiency >
    ELC Fuel Saver - A next generation product that provides multi-function microcomputer technology combined with electronic physics, chemistry, engine mechanics and fuel chemistry. Instalation isn't as quick/easy as they say.

Grooves

Spark Plugs


Superchargers

  • Fuel Efficiency > Retrofits >
    Jet Stream™ Electric Supercharger - This ebook shows how, for less than $100 USD, and with minimal mechanical skill, you can build and install this Supercharger, capable of up to 24,500 rpm; which will deliver a 5-30% boost in horsepower throughout the entire RPM band, "guaranteed," while also improving mileage 10% or more on most any vehicle. (eSuperchargers; [Dec. 27, 2010])

Tailpipe

  • Blade, by Sabertec - Add to Tailpipe, filters paraticulates without creating backpressure; and it sets up a resonance with the engine actually improving mileage. Third party validated, CARP certified.

Greenest

Retrofit technologies that are most effective in converting a polluter to a non-polluter. Cost is not as much a consideration as planet-friendliness.

  • IdleAire - The unit allows drivers to shut off their engines by providing heating and cooling wherever long-haul trucks idle. The only "retrofit" is a $10 window adapter for the truck that provides electrical outlets and a variety of communication and entertainment options for the driver at Advanced Travel Center Electrification System locations. (Giz Mag; March 14, 2008)
  • Non-catalytic Syngas Generator - NxtGen's core technology is the non-catalytic Syngas Generator which enables diesel aftertreatment system regeneration at lower temperatures and with less system complexity resulting in lower capital and operating costs.
  • New Ultra-Low Emissions Combustion Technology - The low-swirl injector (LSI) imparts a slight spin to the gaseous fuel and air mixture in a natural gas turbine, drastically reducing the level of emissions produced (5x less NOx). It can also burn a variety of other fuels — including hydrogen — and can easily be fitted into existing gas turbine models without any major redesigns. (TreeHugger; Aug. 2, 2007)
  • Capturing CO2 to Make Biodiesel - Fitted to a car instead of an exhaust, the Greenbox device traps carbon dioxide and nitrous oxide. The captured gases from the box would be fed to algae, which would then be crushed to produce a bio-oil that can be converted to biodiesel. The box needs to be replaced about every full tank of fuel. (TreeHugger; Jul. 20, 2007)
  • EnviroFit - Cleaning up the air in the developing world by retrofitting up to 2 million two-stroke powered vehicles with cleaner, more efficient direct injection technology licensed from Orbital Corp. The upgrade eliminates 90% of hydrocarbon and 70% of carbon monoxide emissions while improving fuel economy more than 30%.
  • Biodiesel
  • Cold Start Catalytic Converter Advances NREL/Benteler
  • O2Diesel™ Corp has additive products enabling ethanol to be blended with diesel fuels producing "clean diesel" fuel.
  • EcoCing - Smart Muffler technology oxidizes diesel smoke, converts polluters into "clean diesel". The diesel engine is 30 to 40% more efficient and emits 30 to 40% less carbon dioxide than a gasoline engine, but... Diesel smoke is detrimental to human health.
  • Rotec Design - A four-stroke with FreedomAir attached operates on a 2 stroke cycle. The advantages arise because combustion occurs at nearly double the air fuel ratio when compared to the four-stroke engine. Audited Results demonstrate: Simultaneous reduction of: (NOx + HC) by 50.5% and PM by 50.2%.

Cheapest/Easiest Solution

...and still worth the time and expense. Most anyone who knows how to change the oil on a car could install this.


  • Featured: Fuel Efficiency > Retrofits >
    Aero-Nitro Power Injector - Unit being sold by Philippian inventor, Victor G. Ayco, attaches to air intake manifold of any diesel or gas engine where it allegedly converts unwanted carbons and other volatile elements present in the atmosphere into combustible gaseous form, enhancing engine performance, reducing emissions, providing more engine power, and saving on fuel. (PESWiki; Oct. 8, 2008)
  • FIR Fuel Saver - Far Infrared Fuel Enhancer for most petrol and diesel cars. Claim to save fuel up to 25% with Dyno test results. Easy installation and 5+ years product life span.
  • Enhanced Turbine Output - PowerCool™ can increase the output of power station turbines up to 25% by sustaining mass air flow on hot days and at high altitudes when air is less dense. The price of additional power on hot days, when demand and prices are highest, will be about $250 per kW, compared to $600 or more per kW for new combined cycle systems.
  • Carburetor Enhancer: Basic Version - by Eagle-Research
  • Electronic Fuel Injection Enhancer (EFIE) Assists other fuel saver devices. Enhancing combustion increases oxygen exhaust percent so the car's computer adds extra fuel, defeating the fuel saver device. With the EFIE your car's computer is unaware that the exhaust oxygen has increased. This is a must for vaporizers or hydrogen injection systems.
  • An Alternative to your Alternator - Researchers at MIT are developing new technology for converting heat into light and then into electricity that could eventually save fuel in vehicles by replacing less-efficient alternators and allowing electrical systems to run without the engine idling. (MIT Technology Review; June 1, 2006)
  • New device cuts gas engine air pollution - A device being refined at the Univ. of Alabama separates out high-volatility components from gasoline during start-up, and stores them for use after startup, once the engine and other components are warm and more efficient. The system would add about five pounds to a car's weight and less than $100 to its cost when in full production, the scientists estimate (PhysOrg; Aug. 2006)
  • Almost Free Ozone Generator Easy to set up and almost cost free...some claim a 20% mpg gain...best used with pre O2 carbed engines?
  • Electronic Engine Ionizer - Increase Gas Mileage Up to 30% Electro Chemically. Self-Install in Minutes-No Tools Required.
  • SUN AUTO's Hyper Voltage System from Japan stabilizes the voltage current in your car's system resulting in increased fuel efficiency of 4 - 10%
  • The Dixie Cap is a specially designed capacitor that can be easily installed into your vehicle's fuel injection system to provide better gas mileage and improved performance.
  • Diesel-Therm® - The Solution for Using Diesel or Bio Fuels at Freezing Temperatures! Economical by eliminating diesel additives. Gentle engine heating. Less fuel consumption.
  • Evans Cooling - NPG+™ waterless engine coolant virtually eliminates overheating and “Hot Spots‿ that cause engine knock, increasing power and fuel efficiency from 5% to 15%.
  • SolCool - FMS Tire Valve Caps contain embedded mineral ions that modifies molecular vibration for a positive effect in heat energy & dissipation on tire/brake performance, improving fuel mileage up to 25%.

Fuel Pre-Heating

See Directory:Fuel Pre-Heating for Mileage Improvement - separate index page

Image:EcoTube_95x95.jpg Image:Vaporfueltech 95x95.jpg Image:FuelVerter 95x95.jpg Image:Pre-Ignition Catalytic Converter sq.jpg

Friction Reducers

  • RVS Technology - is a technique that makes it possible to form a ferrosilicate (i.e. metal ceramic) surface structure on friction surfaces. It is possible to restore sliding surfaces up to their original shape without disassembling the equipment being treated, to save fuel and engine maintenance cost.
  • Cerma Technology - Cermax utilizes ceramic technology to form a micro-ceramic seal on all metal engine parts, for superior lubrication of hot parts. It reduces emissions by as much as 92%, reduces oil consumption and blow by, and increases horsepower, compression and fuel economy.
  • Torco MPZ Magnetic Friction Reducer - improved fuel efficiency (as much as 6.3% during city driving and 8.5% during highway driving conditions). Compatible with all synthetics, synthetic blends and petroleum based motor oils.


  • Xado Engine Treatment - Ceramic coating over metals reduce friction in the engine. 100,000 Mile Treatment.
  • XcelPlus permanent, one-time use product protects your engine. It improves overall performance, compression, horsepower, fuel mileage and cold weather starts.
  • VALVOLINE SYNPOWER OIL TREATMENT an oil additive that can be used at 4 oz per oil change...some see increased fuel mileage even used with synth oil. Contains moly.
  • MoS2 Anti-Friction gear oil additive I have seen an 8% mpg gain when used in engine, transmission, and differential. There are several brands of moly based gear and engine oil supplements.
  • Vacclaisocryptene The only "undersurface lubricant" known to science. Under heat and pressure, millions of microscopic beads sweat out and this is what the metal is rolling on. It was used on the Lunar Lander & Rover by NASA and was originally developed for the oil and gas refinery industry. This is what the oil companies use to prevent maintnance in their oil refineries. On one test for example in a CAT diesel engine, the Vacclaisocryptene prevented transverse cylinder wear by 100%.

Air Filters

Improve your gas mileage up to 10%. Never needs replacing. Washable and Reusable. Lasts for the life of your vehicle. Or Fram AirHog. Oiled cotton compared to paper

Vaporizers

  • Fuel Efficiency > Retrofits > Vaporizers >
    AGS Fuel Vaporizer System Claims to Boost Mileage - Company claims that their fuel vaporizer system has assisted in 18% to 57% improvement in gasoline fuel efficiency while decreasing emissions. Patent pending product has been tested since 1998. Gasoline engines can only run when the fuel is atomized (vaporized). The Vaporizer can, in most cases, double the vaporzing process thereby giving you a substantial increase in performance. ([Company Site]; submitted June 29, 2011)
  • Fog Devices for high gasoline mileage - Vaporizes gasoline to the smallest particle size possible to enter the engine. Improves gas mileage 5 to 10 mpg and prevents lower winter mileage.
  • VortexValve Fuel Economy Add-on - Low-cost device modifies the way air enters an engine, enabling the fuel to vaporise more efficiently increasing the efficiency of the burn, which increases mileage (between 10 - 30%) and performance, while decreasing emissions. Installs in 5-10 minutes.
  • Intake Heat - Override your car's air intake system to always use hot air. On some cars this can be as simple as jamming the hot air flapper valve open. Yes, cold air is denser and has more oxygen for racing, but hot air helps fuel vaporization and ignition for economy.
  • Francoeur Installs Fuel Vaporizer on GMC CrewCab - System uses 200-degree engine coolant to vaporize the lighter chemicals out of the gasoline into an isolated chamber system. Inventor is working on a way to crack the heavier part of the gasoline. (PESN; Dec. 31, 2005)

Vortex Generators

  • SpiralMax(R) Turbo Exhaust Tube - Reduces back pressure, spiralled exhaust is automatically tuned to the engines RPM. Immediate MPG and HP increase. Anyone can install it in seconds, lasts forever. Improved exhaust allows valves to move more freely, better combustion up front. No welding, cuts or drilling. It can be removed for smog tests, avoid hassles and possibility of voiding new vehicle warranty.
  • VortexValve Fuel Economy Add-on - Low-cost device modifies the way air enters an engine, enabling the fuel to vaporise more efficiently increasing the efficiency of the burn, which increases mileage (between 10 - 30%) and performance, while decreasing emissions. Installs in 5-10 minutes.

Hot Air Intake

  • Intake Heat - Override your car's air intake system to always use hot air. On some cars this can be as simple as jamming the hot air flapper valve open. Yes, cold air is denser and has more oxygen for racing, but hot air helps fuel vaporization and ignition for economy.

Water Injection

  • Tectane: H20 Injector and Aquahol - H2O Injector is an inexpensive add-on device for car engines which reduces emissions and increases mileage up to 40%, and can allow cars to run on 75-octane gasoline or ethanol fuels. Aquahol is the separate injection of 80% ethanol and 20% water, which is the cleanest-burning fuel. Drawbacks?
  • Aquamist - Water injection system suppresses detonation (knock) caused by high temperature and pressure, allowing greater efficiencies from higher compression ratios in turbocharged or supercharged engines. 99% of production cars keep exhaust temperature below 850°C by fuel-dumping (rich air/fuel ratio). Water is six times more effective, and freely available!
  • Water-and-methanol injection - Snow Performance's water-and-methanol injection system boosts the horsepower of just about any vehicle and also improves fuel economy by 10 to 15 percent. It's an old concept that was used on fighter planes in World War II. Boost Cooler kits take about five hours to install and cost $249 to $769. (gazette.com; Oct. 21, 2007)

Tires

  • Featured: Fuel Efficiency > Retrofits >
    Energy Return Wheel by Britek Tire and Rubber - The BriTek Rubber and Tire BERW© is a complete re-imagining of a wheel that is safer, more efficient and still maintains an incredible sense of style and can be bolted onto any vehicle on the road today. It's just very expensive. (PESWiki; Dec. 17, 2008)

Requires Moderate Skills

Retrofit kits that require a natural mechanic ability to install, but whose output performance is well worth the expense and time.

  • http://www.fueleconomytuneup.com - Improve your fuel economy with the Dixie Cap! Developed by automotive and race car specialists, the Dixie Cap is a specially designed capacitor that can be easily installed into your vehicle's fuel injection system to provide better gas mileage and improved engine performance. Give your vehicle extra performance, and give your wallet better gas mileage!
  • Fuel Efficiency >
    Directory:Aero-Nitro Power Injector - Einstein’s relativity theory, says Victor G. Ayco, states that “from matter we can produce energy.” His invention prevents by 30 to 40 percent the formation of carbon dioxide, carbon monoxide, and nitrogen oxides. Also known as "Aerogas Power injector". (PESWiki; Sept 29, 2008)
  • HAFC: Hydro Assist Fuel Cell kit - The HAFC kit presently for sale combines three fuel saving technologies along with a sophisticated computerized emission system optimizer. It includes 1) an electrolysis unit for on-board hydrogen injection; 2) a vaporizer/ionizer using magnets; and 3) additives that include acetone and xylene.
  • The HyZor Electrolytic Fuel Enhancement System by Eagle Research - The HyZor is a common ducted electrolyzer consuming electrical energy parasitically from the engine output, to in turn enhance fuel combustion. This technology is directly analagous to mechanical supercharger systems, and can be considered a type of "electrical supercharger". The HyZor is a kit, once fully assembled and installed is completely automated only requiring occasional refills of distilled water. The HyZor has increased gas mileage of thousands of vehicles across primarily America, and Canada. Units have also been sold worldwide. The kit has been reported to increase gas mileage up to 72%. The marketed average is 12-35%. The HyZor requires use of EFIE circuitry to optimize the vehicles air/fuel mixture. See also Directory:Fuel Efficiency Hydrogen Injection
  • Impulse Engine Technology Pty Ltd. - Negative Pressure Supercharging supercharges engine from the inside using a highly advanced new supercharging process and NO air pump, transforming an engine into a "fuel efficient torque monster", improving fuel economy by as much as 30%.
  • Gates Electro-Mechanical Drive (EMD) System - EMD starter-generator belt drive systems allow the engine to stop when the vehicle is stationary, then restarts the engine almost instantaneously. Studies have shown fuel savings of 6 to 10%, depending on the application, and even more than 20% savings in urban traffic.
  • Fuel Atomizer 2000 - Easy to install carburetor kit will increase gas mileage 30 - 140%, increase engine power and performance, decrease engine wear, decrease pollution.
  • Popular Mechanics tests the Fuel Atomizer 2000
  • GEET - Devise converts automobile fuel consumption for a ~1.5x - 2.5x savings on fuel and far more clean emissions. Uses what appears to be a plasma process.
  • Condensator - Collects the “blow by‿ gases in the crankcase which are normally recycled back into the fuel system. Separates out water and oil, and forwards just the unburned fuel. This also helps preserve the life of the catalytic converter, which otherwise collects the gunk. Or build your own. And a simple PCV jar.
    • EPA tests the condensator - Installation of the Condensator did not result in statistically significant changes in the test engine’s BSFC.
    • I have tested a Condensator with a Tercel 3AC engine and am seeing around a 17% gain in mpg above EPA city/highway. The Condensator is not a simple PCV jar.
    • I also can report on my experience with a Condensator. In fact, I have installed it on two vehicles: a 1989 Cadillac Seville (V8), and a 1985 Toyota pickup (fuel injection). The Caddy originally was getting 13 mpg around town. As soon as I installed it, I noticed some improvement, but it did not reach its peak until over a month later, 19 mpg around town. Cruising on the highway it gets about 23 mpg. In the Toyota pickup, it was getting about 19 mpg around town. After the Condensator was installed it improved to about 25 mpg. I haven't taken any long highway trips, so I can't really report on its highway mileage. To make my experience very plain to you, with the Caddy I only rarely got 220 miles per tankful. Now I can sometimes get over 300. That's a 36% improvement. The Condensator costs about $170. I consider it a very reasonable investment, especially when you also consider that it will help prolong engine life as well as the life of the catalytic converter.
  • Platinum Gasaver is guaranteed by National Fuelsaver Corp to increase gas mileage by 22%. The Gasaver adds microscopic quantities of platinum to the air-fuel mixture entering the engine. Uses technology proven in catalytic convertors.
  • Spiral Turbo Baffles - Exhaust baffle system reduces backpressure, significantly reduces noise levels, increases horsepower and torque, and improves fuel economy.
  • MSD Ignition system gives multiple spark discharge, resulting in more engine power and better fuel economy. MSD Blaster Ignition PN 5900 creates a high current, long duration spark that efficiently burns the air/fuel mixture in the cylinder. The benefits are more power, easier starting, and increased mileage. 8.5mm Super Conductor Spark Plug Wire - The low resistance results in less loss in spark energy so more reaches the spark plug.
  • Nology - HotWires create the most powerful spark possible by using a special built-in capacitor that allows energy from the ignition coil to accumulate until the voltage at the spark plug electrodes reaches the ionization point. At that split second the entire power of the stored spark is discharged at once, creating a spark 300 times more powerful.
  • MotorSpark - 1Spark™ provides added storage energy to optimize inductive ignition coil output performance by up to 50%, producing faster, more powerful sparks for quicker and more complete combustion, yielding fuel savings of 5 – 21%
  • PPG Industries - The Sungate metal oxide coated windshield reduces infrared energy by 50 percent, outperforming tinted windshields by 400 percent. While the air conditioning is operating, the Sungate windshield improves fuel efficiency by as much as 3 to 4 percent.
  • FIVS Gen III - Fuel Implosion Vaporization System - FIVS installed on a 1973 Dodge Coronet station wagon, a gas guzzler with a 318 cubic inch V-8 engine that got less than fifteen miles per gallon at best, achieved slightly over 100 MPG!
  • Kleen and Green Miracle Solutions - The ‘Passive Turbo’ fuel saving device gives you up to 75% more miles per gallon. It works using a special air filter with near zero drag resulting in the engine receiving near on 100% of air on the induction stroke. The second stage consists of a container of liquid (non flammable) that changes its state from liquid to a gas by molecular adhesion that mixes with the flow of air into the engines PSV system. Georgeheeley@aol.com
  • Visteon Corp - Coil-On-Plug Ignition System mounts directly to the spark plug, matching the energy delivered by the coil to the requirements of the engine, based on engine speed and load. It provides improved fuel economy, lower emissions and reduced spark plug fouling compared to conventional ignition systems.

Aerodynamic Modifications

Paint

  • Aerodynamic coating breakthrough boosts fuel mileage in almost any vehicle - Slipstream fs (fuel stream) is a wax-like coating ($19.99) that solves the aerodynamic problem of drag at the back of vehicles, often called "base" drag. Slipstreamfs is applied ONLY to rear vertical surfaces where it helps to smooth out rear air turbulence, resulting in fuel savings of 10 - 30%.

Ram Implosion Wing

  • Directory:Ram Implosion Wing - uses a specific shape of wing to install on rear, top of vehicle to create a mimic of the reverse teardrop shape vortex. Double mileage reported.

Others

  • 95 mpg Aerocivic - "Aerocivic" is a highly-modified 1992 Honda Civic CX that gets 95 mpg after 250 hours work and $400 spent. Everything from the wheel wells to the wiper blades has been spruced up, dropping the drag coefficient from the original 0.34 to 0.17. (AutoblogGreen; Dec. 27, 2007)
  • TAU Drag Reduction Device Cuts Fuel Costs - Tel Aviv University has developed a drag reduction device that can be fitted to the back of a truck or its trailer to increase fuel economy by as much as 10%, through the combined action of suction and pulsed blowing of airflow. The device will cost $1000 to $2000 per unit, potentially saving the US trucking industry $400 million per year. (Tel Aviv University; May 20, 2007)
  • Fuel Savers - VG Fuelsavers are vortex generators that cause the boundary layer of the airflow to stick to the back of the vehicle, reducing drag inducing 'eddys' and producing fuel savings of up to 11%. They also provide clearer rear vision during rain or dusty conditions and more stability during cross winds.
  • Max MPG - Aerodynamic Modifications for Maximum Mileage
  • Passenger Car Aerodynamics - Getting the most out of the car you have.
  • Belly pans can increase economy up to 2 mpg
  • Improving Aerodynamics to Boost Fuel Economy
  • Custom front air dam increases gas mileage by improving the areodynamics
  • Free Fuel Riding on the Wind - Toyota Tacoma pickup saw its fuel economy go from 25 mpg to 32 mpg by improving its aerodynamics.
  • Airtabs™ are small air flow streamliners - 4 to 6% mpg gains claimed...mainly for trucks...SUVs...vans...
  • DIY vortex generators you can make your own vortex generators out of alum or plastic. Be the first in your neighborhood to join the space age.
  • Solus Solutions and Technologies - The Cross-Flow Vortex Traps create a series of trapped vortices, oriented vertically on the front face of the heavy truck trailer. The trapped vortices decrease the pressures acting on the front face of the trailer and reduce drag. Fuel savings of between 4 to 5 percent were demonstrated in wind tunnel and road tests.
  • Turbo Shield - Race cars control undercarriage turbulence by controlling the distance to the pavement, plus the width of the nose piece. This allows the car to be more stable, increase power, and reduces fuel consumption. Attached in front of the axle, the polypropylene Turbo Shield greatly reduces undercarriage turbulence. With significantly less drag, operators of semi-tractors, dump trucks, step vans, motor homes and pickup trucks can see improved mileage of 10-15%.

Transmissions

  • Directory:Transmissions (separate page) - Efficient transmission designs improve fuel economy and reduce emissions.

Chipping

  • Mod Chip - A low cost alternative to a Superchip / BBR Starchip for your car. Boost your engines power by up to 20+ BHP and increase your fuel economy. Easy 5 minute installation.
    • Power Mod Chip selled 10$ and are just resistor that you can buy for 0.15$ at radio shack!
    • Easy Fuel Saver selled 10$ and are just a tiny magnet tape that you can buy probably for less then 0.25$!
    • Performance "chipping" upgrades - Skeptic's comments

Fuel Catalysts

  • Pre-Ignition Catalytic Converter Coming Soon - Better World Technologies presents a catalytic converter replacement that legally pre-treats the fuel for complete combustion, rather than burning what is left over after incomplete combustion. Pre-heating the fuel along a rod turns the fuel into plasma, to burn a wide varieties of fuel efficiently and cleanly.
  • SuperTech fuel saver - Super Tech® is a catalyst device that is immersed in the fuel tank, where it emits infrared and electromagnetic waves. These waves apparently affect the way that the fuel molecules interact with each other, allowing a more favorable combustion of the fuel, resulting in 6% to 12% savings and reduced emissions. Extensive documentation. Skeptic comment.
  • The Fitch Fuel Catalyst is a maintenance free device which easily installs in the fuel line much like a fuel filter, or directly into the fuel tank. Claims a reduction in emissions with increases of as much as 5% - 10% in fuel economy.
  • Broquet Fuel Catalyst - British product for in-tank or fuel line placement. Cuts emissions by 30 - 50% and improves MPG.
  • Dynamic Ionizer is a ceramic flow catalyst from Japan made of various radioactive natural ores. It breaks down large ions into smaller ion pairs; this improves the bonding efficiency, significantly increasing the output energy from burning. Place in the gas tank and air intake.
  • Rentar Fuel Catalyst improves combustion on large diesel engines and oil burning furnaces. Explanation of how a catalyst works.
  • The Energy Group Fossil Fuel Stabilizer - Installs onto the fuel line of any fossil fuel combustion equipment: Virtually complete elimination of exhaust emissions. Boosts overall fuel efficiency from 6% to 30%
  • Fuel Cat - A more complete and even Combustion gives more power per unit of fuel. If used, the engine performance will be enhanced, using the same amount of fuel, or if saved, better fuel consumption. Typical savings reported by FUEL CAT users is between 8% to 15%. Due to the more complete combustion, both diesel and petrol engines will run more smoothly.
  • Eco-Systems - The Eco-System is installed inline on your vehicle's fuel line after the fuel filter. When the fuel passes through the unit it creates a catalytic reaction, breaking up the hydro carbon chains in the fuel, causing the vapor pressure to increase. This increase in vapor pressure causes the fuel to burn more completely in the combustion chamber. The more complete burn means lower emissions, increased power, less hesitation and less fuel.
  • Emissions Technology - Combustion Catalyst Systems use the same principle as a catalytic converter, but attack the source of the problem inside the combustion chamber. A vapour mist of platinum catalyst is injected into the engine through the air intake duct, significantly enhancing the combustion process and reducing fuel consumption up to 15%. See also Emissions Products Intl (US distributor), Emissions Technology UK, and C-tech3000 (UK distributor).
  • Fuel FX - The Fuel FX Reactor provides on-board refinement to improve the combustion quality of diesel fuel, to reduce fuel consumption by 5 - 15%, increase horsepower and reduce emissions. It is a maintenance free device that is installed on the fuel supply line between the fuel tank and the engine.
  • Pre-Ignition Catalytic Converter - The PICC replaces you old catalytic converter in the exhaust and fuel is routed through the new one in a counter-flow direction relative to the exhaust. A special "burned-in" rod of cold-rolled steel, cut to the correct length (possibly for a magnetic resonance effect) resides inside the reaction chamber. A phenomenon described as a lightening storm takes place within the reactor, and fuel passing through this "storm" becomes "cracked" into it's elements, also described as plasma, a 4th state of matter. Test cars averaged 3 times mileage running on gasoline alone. A ratio of 50/50 water and gas can double that to 6 times gas mileage. A Dennis Lee product.
  • Hydrodrive Electronic Catalytic Converter cum Fuel Synthesizer retrofit measuring one foot long,one inch in diameter weighing approximately one kilogram and installed after the fuel filter outlet and before the fuel pump inlet makes all hydrocarbon fuels such as diesel, bio-diesel ,leaded and unleaded gasoline into hydrogen rich fuel when the fuel flowing through the nano layer waveguide is excited using the existing vehicle's battery power.The COLD PLASMA CATALYSIS of the fuels change the fuel properties altering the kinetics of combustion resulting in reduced emissions,smoother engine performance and appreciable fuel savings.The onboard hydrogen production and immediate use with the flowing fuel avoids high pressure storage of hydrogen while making conventional vehicles to get the benefits of hydrogen fuelled cars at more economical costs.It is covered by U.K PATENT No.GB 2397782 ,INDIAN PATENT NO.200286.Patent rights protected in the USA,CANADA,JAPAN,CHINA,PHILIPPINES and in other countries.Now exported and used in Philippines,China,the Netherlands,Ecuador,Bangladesh and asian countries.
  • MTech Fuel Saver - The Moletech Fuel Saver has the ability to change three areas within the spectrum of gasoline by absorbing the CH (Benzene) of saturated and unsaturated hydrocarbon. We restructure the environment for the fuel, water and air within the vehicle's operating system, to thereby deliver more kilometres per litre, reduce dangerous exhaust pollutants and most importantly, lower harmful greenhouse gases.

Engine Cleaning

  • Supervac loosens and dissolves accumulated deposits from inside your engine.
  • Enginewity has developed a machine and several patented processes that eliminate the harmful contaminates in the engine, transmission, fuel system, cooling system and catalytic converter.
  • Auto-Rx Engine Cleaner - Effective in removing sludge that can damage your engine, without using solvents or petroleum. Liquefies sludge, carbon and other debris. Cleans your Ring Packs while you drive. No other product can do this.

Engine Lubricity and Refurbishing

  • Boron Additive - Allegedly enhances lubricity as well as repairing worn metals, for possible increase in engine efficiencies.
  • RESTORE Engine Restorer and Lubricant is an engine additive that claims to repair worn-out areas in the cylinder wall thereby restoring cylinder compression and engine performance.

Absolute Best Mileage Increase

Despite time and expense, the retrofit technology that results in the best increase in mileages. (Safety is a consideration that should be considered.)

  1. Saturn SL1 achieves 99.53 mpg at Tour de Sol. Modifications by Hydrogen-Boost.
  2. Geo Metro achieves 98.96 miles per gallon doing 45 mph laps around the California Speedway. Modifications by Green Star Products Inc. and GTA Technologies, Inc.
  3. Ultra MPG Super Tune Up - Many small things add up to something big. Affordable.
  4. List here (click on the "edit" button to the right of the heading)

Retrofit R&D

Technologies not yet commercially available.

  • Fuel Efficiency > Retrofits / Engines >
    Dearth of financing stalls inventor of 110-mpg engine - A year ago, hundreds of people flocked to a 100,000-square-foot former factory building in Wauseon's industrial area where a Napoleon, Ohio, inventor promised to begin building engines that would travel more than 110 miles on a gallon of E85 gasoline. But time and the economy have not been kind to Doug Pelmear's plan to revolutionize the American automobile. (Toledo Blade; May 28, 2010)
  • Man claims fuel system gets 463 miles per gallon - John Weston's 1992 Geo Storm has an air vapor flow system where instead of liquid fuel, only vapors go to the engine. The system burns cleaner and based on a one-time test, "It came up to 463 miles a gallon" said Weston. (NBC2 News Online; July 7, 2008)
  • Fuel-saving find - Ernie Brookins’ hybrid hydraulic transmission drive system captures, compresses, and stores “wasted��? drive-train energy produced when a vehicle’s engine is running. (In-Forum; May 24, 2008)
  • Hydristor to convert vehicles into green hybrids - This infinitely variable vane hydraulic pump/motor is basically a simplified automatic transmission with no gears, with regenerative storage capability. Aiming to retrofit existing vehicles, it is projected to double or even triple mileage, while drastically cutting emissions (to 1/4) and boosting performance.
  • Hydristor Vision Statement - Inventor, Tom Kasmer, shares an overview of his infinitely variable hydraulic pump technology for both improving fuel economy on vehicles, as well as integrated into a heat pump generator system for harvesting solar and other environmental heat differentials as a primary energy source.


  • Herman's Insight - Herman P. Anderson's is a hydrogen car retrofit will screw into the spark plug to convert any car to hydrogen, with water as source. Still being developed.
  • Running on Vapors: Tom Ogle's 100+ MPG Fuel System - A young inventor who died at age 26 in 1981, demonstrated an ultra high mileage system in 1977, later patented, that used the engine vacuum to draw fuel vapors from a vapor tank, obviating the need for a conventional carburetor and fuel pump.
  • McBurney Cracks the Code for Super-Carburetors - Inventor says the key is the catalytic cracking of the larger gasoline molecules into the dynamic combusting single-carbon molecules of methane and methanol, in the presence of heat, a catalyst, and water vapor. (see HIMAC Research)
  • Water-Fuel Generator Kit - links to technology give-away by inventor Carl Cella. "Modify your car to burn water."
  • W.Myers vaporizor system. Similar to GEET, but very high pressure -- needs work.
  • ALF Vaporizer System Manual Now Available - Complete instructions with drawings, photos, list of parts.
  • Vapor Fuel Technologies LLC: Fuel Vapor System - Vapor Fuel Technologies, LLC (VFT) has developed a system that increases fuel efficiency by over 30%. An independent test lab has verified these results. The VFT system is near production ready and will fit a major portion of light trucks and SUV s when complete.

Resources

Tools

  • ScanGauge II - Track your automobile statistics with ease. Unit plugs into the diagnostic connector found under-dash on 1996 and newer cars and light trucks.
  • Superchips MAX MicroTuner connects to the diagnostic connector inside your vehicle. In less than 10 minutes Superchips tunes the vehicle, giving the most power, the most torque, the best fuel efficiency and improved drivability.
  • auto FT Van Aaken SmartBox™ improves performance and fuel economy for turbo diesels. It simply plugs into your pump and gives you 15-40% more torque and horsepower. Mass market vehicle manufacturers have to presume that your diesel car will be run on the poorest quality fuel, will rarely if ever be serviced but will still run smoothly and pass emissions testing. So they set them up accordingly.
  • Tire pressure gauges - Under-inflated tires increase rolling resistance and decrease gas mileage.
  • Auterra Scan Tool - The Dyno-Scan kits connects to all 1996 and newer vehicles to obtain diagnostic information and measure vehicle performance.

Humor

  • Humor > Fuel Efficiency > Retrofits >
    Emergency Plane Landing - One of the funniest videos I've ever seen explores what happens when a passenger jet has to land on a freeway. Will the SUV hold up as makeshift front gear? Will the granny in the way survive? As for energy, this could go down as an exotic, albeit impractical retrofit for fuel efficiency. Note the mileage boost to the SUV. (YouTube; February 18, 2007)

Buyer Beware

See also

FUEL EFFICIENCY

FUEL TREATMENT TECHNOLOGIES

ELECTRIC VEHICLES

VEHICLE HARDWARE MODIFICATIONS

AWARDS

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