We've tested a bunch of pour-in fuel additives in Fact or Fiction over the years. Can you really blame us? With all their promises of horsepower and torque increases, detonation resistance, and ...

Even tried-and-true diesel motors need proper care and feeding to keep clattering along, and proper diesel fuel additives will help with just that. If you want your Volkswagen TDI or Duramax to ferry ...

Owner-operator Glen Rice is based today in New Smyrna Beach, Fla., hauling leased to R&R Express of Crayton, Pa., for more than eight years now. With his fiancee and ridealong business partner Bernice ...

Like a wine without a cork, gas can go bad when it sits around mingling with air. Fuel actually starts to turn nasty after 30 days. Since your car's fuel system is not an airtight container, ...