Fuel does not stay fresh forever. Gasoline begins to oxidize in a few months, forming sticky varnish and gum that can clog carburetors, injectors, and fuel filters. Diesel faces its own problems: as ...

My 1965 Mustang has been sitting in a field since 1984 and I am worried about varnish buildup in the tank before I fire the engine. I drained the fuel and it smells OK, but I am worried about varnish ...

Having fuel injectors on all mass-produced vehicles is one of the biggest automotive breakthroughs of the past few decades. If you've ever gone through having to start an engine with a poorly tuned ...

Adding a good fuel additive can help stabilize fuel and keep your motorcycle’s engine performing at its peak. A good fuel additive should be a part of your regular maintenance no matter where you live ...