Consumer Reports has no financial relationship with advertisers on this site. The process of walnut blasting, which entails cleaning the intake manifold and valves of a car’s engine with a high ...

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 ...

Valve gunk is nasty stuff that comes from the toxic vapor of steam, oil, gasoline and hydrocarbons circulating around the inside of your engine. A normal process of combustion in any gas powerplant, ...