THIS paper describes the background, operation, and results of a series of 50,000-mile low-duty service tests on motor oils. Comparisons of engine cleanliness and wear are presented in oils ranging ...

Hello Paul, my Mercedes C200 has been parked for four years and I have been advised to flush the engine. Apparently the oil has become thick and lumpy. Can I flush it at a petrol station? George Hello ...

Rislone offers an Engine Treatment Concentrate that is designed to keep aging engines clean. The product can help solve sticky valves and rings, noisy valves and lifters, plugged oil passages and ...