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?

Why Do We Need Fuel Injection Service? From the first time your engine is started, dirt, carbon deposits and varnishes are formed in your vehicle's fuel systems, on the intake valves and in the ...

Q: I own a 2002 Pontiac Bonneville SLE. I have been adding Gumout fuel injection cleaner to the gas tank every 3,000-3,500 miles. How do I determine if it has direct injection versus the “other” kind?

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 ...

Penray’s 2-Step Premium Fuel Injection Service Kit includes the company’s Total Fuel System Cleaner and a Total Intake System Cleaner that can be used in both gasoline and diesel engines. The kit is ...