Drive a Opel Omega B, 2.2i Year 2000, which was heavily contaminated with oil throttle due to the crankshaft ventilation. The engine warning light went on already in the workshop they wanted me install a new throttle control motor (would have been expensive sau), only got cleaned out by hand, the throttle valve with brake cleaner. Then I kept strictly to the instructions on the can. Be sprayed act, and then start the engine. And have to say it giung just about anything out, are the no longer went to the pilot light. There are of me just because 4Sterne running with the spray while the engine, does not work with any vehicle. For me it was just the two, since I have an electronic accelerator pedal and so the engine compartment can not increase the speed manually. But otherwise I'm happy with the top cleaner, I can recommend it to anyone.