Valvoline has developed a new direct-injection fuel system cleaner that the company says will remove carbon deposits in about an hour. The EasyGD Fuel System Service featuring Power Dispersal ...

The CombustiKleen Upper Cylinder & Intake System Cleaner is pulled directly from the can into the intake manifold, the company says. The fine mist reaches every part of the intake and combustion ...

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 ...

CombustiKleen upper cylinder and intake system cleaner is pulled directly from the can into the intake manifold in a fine mist that removes contaminants such as carbon, gum and varnish. The product ...

There’s hardly anything on a truck that’s simpler than its air-intake system. And not too many things – maybe only your right foot – that can have as much effect on fuel economy. A diesel engine needs ...