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Serious Science For Your Engine

With over 3 decades and 3 billion miles behind it, XFT is a scientific heavy hitter.
The unique formula contains multiple ingredients, each designed for a specific purpose. Put them together and you get a comprehensive fuel treatment that’s like superfood for your engine.
Organometallic Compound

A catalyst that ignites fuel at a lower temperature, providing a longer, more complete burn of the fuel.


Reduces friction from pistons, pumps, and injectors, which would ultimately wear down the engine, therefore prolonging the engine’s working life.


Cleans and maintains injectors, as well as the rest of the fuel system, so the engine works as efficiently as possible.

Polymerization Retardants

Reduces solids that form in the fuel tank and keeps the engine clean, prolonging the life of all engine parts.

Rust & Corrosion Inhibitors

Removes and prevents rust in the fuel system, keeping it running efficiently.


Helps separate water from fuel. A single drop of water can cause an injector to fail and damage the entire engine.

Fuel Stabilizer

Stabilizes fuel to keep it from breaking down or deteriorating, and gives fuel a longer shelf life.


XFT contains a proprietary combustion catalyst and burn rate modifier to achieve optimum engine performance. Safe for all combustion engines and fuel oils.

Organometallic Chemistry -

Works every time!

Derived from award-winning organometallic chemistry, XFT combines with diesel fuel or gasoline to create a more effective combustion and fuel-burning process.

Users of XFT report cost savings on fuel purchases and equipment maintenance, reduced environmental impact from harmful emissions, and increased horsepower and engine longevity.

XFT Bottle Splash
XFT - Did You Know?
  • Contains no alcohol
  • Can use lower octane fuel and engines will perform like using higher octane fuel
  • No warranty issues (does not change specs of the fuel)
  • Provides more horsepower
  • Safe for all 2-cycle and 4-cycle engines (lawnmowers, snow blowers, generators, etc.)
  • Can be used in all types of fuels (gasoline, diesel, ethanol, and bio-diesel)
  • EPA registered
  • Keeps sensors cleaner from carbon buildup
  • Keeps fuel from separating during storage
Don't Worry!

You don’t need to be nervous to use XFT. In fact, many owner’s manuals actually direct you to use a fuel additive to combat the negative side effects of things like ethanol and poor fuel quality, and to make your engine last longer. XFT won’t affect your warranty either. (XFT doesn’t change the specs of fuel, so it can’t affect the warranties.)

Other Resources
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Frequently Asked Questions

You should double-dose your first 2-3 tanks and then use one dose per fill-up after that. For generators, we recommend 3-5 double doses. Follow the dosage guidelines on your XFT package.
The organometallic compound utilized in XFT is referred to as a sandwich compound, which is generally classified as a burn rate modifier for all types of fuels. The active ingredient compound reduces combustion ignition delay and helps to remove existing carbon formulation on internal combustion components, resulting in improved engine life, improved fuel economy and reduction of emissions.
Between 1:5,000 to 1:10,000 (1 part XFT to 5,000 or 10,000 parts fuel), depending on the type of fuel used. Heavy fuels will have a lower treat ratio compared to No. 2 diesel, ethanol, or 83-89 octane fuels.
XFT does not change the specs of fuel (see ASTM D975). If XFT does not change fuel specs, it cannot affect the warranties. Syntek also maintains insurance for any claims that may happen by using the additive. In over 25 years of use there has never been a claim against Syntek's insurance.
XFT does help with lubrication. In newer, lower sulfur fuels there is a lack of lubricity agent. This means injectors are not getting enough lubrication. XFT has a high level of lubricity, thus helping the engine to run longer and more efficiently, therefore lowering maintenance issues.
XFT was specifically tested to ensure complete compliance with the applicable standards associations' performance criteria. This includes the American Society of Technology and Materials (ASTM). Furthermore, the product has been evaluated by, and is registered with, the Environmental Protection Agency (EPA).
XFT was formulated to reduce solids, water, rust, and corrosion. With its detergents and lubricity agents it will help clean and protect fuel tanks, fuel lines, pumps, filters, and injectors. XFT also benefits engine valves, pistons, rings, and cylinders eliminating carbon build-up, and significantly increasing engine life.
There are many factors that contribute to automobile fuel economy. Some people may need to use XFT over a longer period of time depending on engine type, age of vehicle, maintenance, etc. Increases in fuel economy is just one of the benefits of XFT. Numerous tests prove that it is working, so you may see the benefits in other ways, like reduced emissions or improved performance. XFT is a scientific based product that works every time.