How To Solving the ‘Mystery’ of using a fuel and oil additive John Paul, AAA Northeast's Car Doctor, answers a question from a reader curious about using Marvel Mystery Oil.

Fuel additive companies make a lot of claims about their products, but are they actually a scam? This guy investigates.

WEEK back used a Gasoline additive in my 1.0 TSI Automatic (Torque Converter) Skoda Rapid. The car is a little over 4 years ...

Amsoil's diesel All-in-One fuel additive combines the benefits of Amsoil Diesel Injector Clean, Diesel Cold Flow, and Diesel Cetane Boost in one package. According to the company, the additive ...

Each gas brand uses its own blend of additives that distinguishes its fuel from other brands. These additives can affect the quality of the gas.