How To Remove Sludge From Car Engine?

Use An Engine Flush to Refresh Your Engine They are normally mixed with the old oil, and then the engine is allowed to idle for 5-10 minutes without being driven.This allows the chemical solution sufficient time to solvate the sludge and pull as much of it back into the oil as feasible.When you replace the oil, the engine sludge is removed along with the old oil, and the process is repeated.