... in crankcase, oil passage, piston, lantern rings, by flushing lubricant system within 3 minutes3. Improve engines’ efficiency, decrease breakdown, increase ... work life.Instruction - 1. Before replacing the engine oil, Stop engine when getting normal tempreture2. Add ond can into the ... car, two cans for a truck3. Start the engine and stop it after 3 minutes working (for engine with excess deposites, ...