Add Yahoo as a preferred source to see more of our stories on Google. Fuel injectors don't just deliver fuel. They meter it, shaping the spray so the air-fuel mixture burns in the way the engine wants ...

Clogged injectors can cause a myriad of issues for your engine—it needs a consistent flow of fuel to run properly. Sometimes, simply pouring a can of injector cleaner into your gas tank before a ...

While fuel-injector cleaning is often recommended by shops and dealer service centers, it probably isn’t necessary unless it’s correcting a running problem. In many cases, just using a quality ...

You've heard of mixture distribution problems relating to carburetors—different cylinders receiving different amounts of fuel. This is caused by many variables, including g-forces and poor manifold ...

There are only three things guaranteed in life: death, taxes, and traditionalists intimidated by radical new techno-gizmos that alter how things have been done since "the good old days." When it comes ...

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 ...