The Revive Turbo Cleaner Big T Kit is designed for engines over 5.0L. The kit includes three 500ml bottles of Revive Engine Cleaner, an applicator and user instructions. Revive Turbo Cleaner and Power Restorer is effective at removing sooty carbon deposits from the back of the inlet valves on Direct Injection Gasoline (GDI) engines, where there is no 'back-wash' of fuel to help keep the deposit build-up minimal. Revive is a water based fluid that physically removes the carbon build up as it passes through the combustion chamber at velocity. Revive is safe to use and safe for the environment, is non-flammable and does not cause harmful secondary detonation. Because Revive is a "mechanical" process, not a chemical process, there is no chance of liquefied carbon and soot loading up elsewhere in the engine, the company says.