Over time and miles, your car might start to slow down. It might not accelerate as quickly as it once did; the engine may not run as smoothly as you remember, or the fuel economy may dip—but ...

Is the fuel-injection cleaning sold by many independent garages and dealerships a sound investment in your vehicle, or a marginally beneficial service pushed on consumers to fatten profits?

Gasoline direct injection (GDI) engines have become increasingly popular for their improved fuel efficiency, reduced emissions, and enhanced performance. The latest generations of GDI V-8s become more ...

Gasoline direct injection, or GDI, is one of the most crucial bits of technology in the modern internal combustion engine. In engines equipped with GDI, highly pressurized gasoline is sprayed directly ...

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.

If you’re in fleet management or the construction industry, you undoubtedly have machines that run on diesel fuel. In addition to large trucks, more than 75% of all heavy construction equipment uses ...

Q: I have a 2004 Toyota Camry with 55,000 miles on it. While the car was in the dealership for an oil change, they recommended a "power steering flush" and "fuel injection service" involving a ...

Diesel fuel is generally very clean when it leaves the refinery. But it can pick up contaminants as it travels through pipelines, terminals, delivery trucks, underground storage tanks and dispensing ...