The other day I dropped my car off at a European specialist shop, and while I was there, a technician was working in the engine bay of a Mk7 Golf R, cleaning out carbon deposits off the intake valves.

Fuel injectors that are working properly respond instantly to the demands of your engine. Unfortunately, even the best fuels contain impurities that can gum up the injector nozzles, reducing ...

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 ...

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 ...

In response to the changing engine needs of the marketplace, Penray now offers two advanced fuel additives designed to remove harmful deposits from the fuel system in today's cars and light trucks. In ...

How does direct fuel injection work? Instead of having injectors in a throttle body, or in the intake manifold, a direct injection system makes use of an injector that fires into the combustion ...