Fuel-water separators have greater water-removal capabilities to better protect unit injectors, Caterpillar says, and deliver longer secondary fuel filter life. The separator removes 98 percent of ...

It may not have the coolness quotient of a high-lift cam or a rowdy exhaust system, but a properly functioning set of fuel injectors plays a critical role in optimizing overall engine performance.

The most common 1.6-liter VVTi engine on your Toyota Corolla features a bundle of electrical wires attached to it that controls things like fuel injectors and ignition coils. If for some reason you’ve ...