Does engine flush clean the engine?

Colin Mudd

Engine flushing is a method of cleaning your engine using a chemical additive. This additive flushes your engine of carbon deposits that may have built up over time. The additive is then left in the engine for several minutes while it idles, allowing the chemical to pass thoroughly through the entire engine system.


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An engine flush is an aftermarket chemical additive designed to clean accumulated deposits, sludge and other gunk from your engine. You pour it into your engine’s oil-filler port and idle the engine for about 10-15 minutes. It mixes with the oil and circulates through the engine, helping dissolve sludge and clean deposits. Then, you drain the oil (along with much of the gunk, in theory), change the oil filter, add fresh oil and return to the business of driving.

Santiago Oliver

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