Tin-antimony alloy keeps engines permanently clean and efficient - that's why the manufacturers don't use it 

In 1942, the American motor industry discovered tin-antimony alloy (like the pellets used in the fuel tanks of Hurricane and Yak fighter planes* operating over the Russian front) caused fuels to self-clean as they combusted, keeping any petrol or diesel engine permanently clean. They were very worried. No carbon deposits meant greatly reduced engine wear. Putting a big dent in their profits from spares, repairs and annual engine de-cokes. But for the fuel additive companies, with dispenser cans at every fuel pump, the pellets spelt complete disaster. So they started a smear campaign. And motoring's biggest lie was born.

Along with snake oil slurs and stories of exploding engines, the rather plausible sounding 'if they were that good the manufacturers would fit them' was circulated by through main dealers and repair garage networks. It wasn't long before ordinary motorists were repeating the propaganda circulated to fool them! Over the last 80-years, motoring's biggest lie, has been repeated so many times, especially in the UK, many have come to believe it. With misleading press, straw man tests and red herring reviews all helping hide the truth about this extraordinarily simple alloy.

The long-established use of tin-antimony alloy

Tin-antimony catalysts were first used commercially during the 1960s in South Africa, to keep emissions permanently low in Anglo-American's mining vehicles. Due to their success they were then used in SAF Marine's container ships to cut black smoke, prevent fuel wastage and extend service intervals. As independent tests repeatedly confirmed the alloys ability to eliminate carbon deposits, its use and popularity steadily increased. Following the results of the Philadelphia Coca Cola Company's fleet trials in 1998, the US military conducted 14-months testing at Camp Pendleton and the Naval Facilities Engineering Service Center. 

In 2003 the Senate Committee on Armed Services announced the results to Congress with the recommendation that Donald Rumsfeld, Secretary of Defense, should take immediate steps for the application of fuel catalyst technology.** Since then the use of tin-antimony alloy has exploded worldwide. And today fuel catalysts are used by private and commercial vehicle owners in every imaginable make, model, type and age of petrol and diesel vehicle. 

Avoidable carbon deposits affect all petrol and diesel vehicles

The 

The reason we don't really notice carbon deposits building up in our engines, is because the engine management system (EMS) in modern vehicles, progressively retards the ignition timing to prevent overheating, pinking and knock. But this has a negative impact on combustion efficiency, engine performance, fuel consumption and emissions. Removing existing deposits reduces the engines operating temperature and allows the EMS to progressively reset the ignition timing.

The Handbook of Air Pollution from Internal Combustion Engines and the Society of Automotive Engineers confirm, carbon deposits affect all petrol and diesel engines, causing driveability issues, reduced power, poor fuel economy and excess exhaust emissions. Whilst the motor industry's own Worldwide Fuel Charter admits, even the use of high-quality fuel leads to deposit formation, affecting vehicle performance and increasing engine-out emissions. Which is why carbon deposits are the root cause of the excess traffic pollution that ruins the air quality for hundreds of millions of people in towns and cities worldwide.

The effectiveness of tin-antimony alloy

The ability of tin-antimony alloy to permanently eliminate carbon deposits has always been easily measured and observed using industry-standard before & after emissions results (the same way liquid fuel additives are tested). In addition to before & after emissions results and MOT test certification, FTC has been independently verified by world leaders Emissions Analytics, using the latest portable emissions measurement system (PEMS).

When tin-antimony alloy is placed in the fuel tank of any petrol or diesel vehicle it causes the fuel to act as a self-cleaner as it combusts. Removing existing deposits and keeping the engine permanently clean and efficient. But unlike liquid fuel additives and repeat-use chemical cleaners, tin-antimony alloy is permanent. And goes on working for as long as it's in the fuel tank. Keeping the engine permanently clean and efficient. 

The origin of tin-antimony catalysts

Tin-antimony catalysts were originally developed by Russian scientists in 1941, for use in the fuel tanks of Hurricane and Yak fighter planes operating out of Murmansk during WW2. Low temperature waxing in the local aviation fuel was causing crystalline deposits to clog carburettors leading to engines cutting out and mid-air stalling. The planes were restricted to 16,000 ft until a solution could be found. When tin-antimony pellets were added to the fuel tanks, the planes were able to operate over and above their usual ceiling of 20,000 ft with exactly the same fuel.

*The WW2 campaign, code named 'Operation Benedict' is recorded in Hurricanes Over Murmansk by John Golley ISBN 1840372982 and in Force Benedict by Hurricane fighter Eric Carter ISBN 1444785141 - who details the wartime use of the pellets and their subsequent post-war development. Pages 129-131, 256-257

**107^th Congress  2^nd Session  House of Representatives  Report 107-436  Pages 292-293