An engine flush is an aftermarket chemical additive designed to clean accumulated engine sludge, deposits, and other gunk. You pour it into your engine’s oil-filler port and idle the engine for about 10-15 minutes. The engine flush mixes with the diesel engine oil and circulates through the engine, helping dissolve sludge and clean deposits. Then, you drain the engine oil (along with much of the gunk, in theory), change the oil filter, add fresh oil and get back to driving.
During the heady days of its youth, your engine’s performance delivered maximum power and efficiency. Over time, however, harmful deposits and sludge may have accumulated, causing power and performance loss. Global lubricant suppliers in GCC and MENA provide you the best automotive lubricant oils.
Deposits and sludge can form in the engine for several reasons, such as frequent short trips that don’t allow the oil to fully warm up and evaporate moisture, the ingestion of air-borne dirt, fuel dilution and high heat breaking down the engine oil. As it settles, commercial engine oil sludge can clog narrow oil passages or the screen on the oil pickup tube, restricting oil flow to vital parts of the engine, especially the upper valve train. Deposits can cause the rings to stick, reducing engine compression and horsepower.
A good engine flush can help loosen deposits and dissolve sludge, returning your engine to like-new condition. However, in old engines with high miles, the engine sludge may be the only barrier keeping industrial hydraulic lubricant oils from seeping through worn or cracked seals. Removing the sludge exposes the seals for what they really are rubbish. Soon, your engine begins leaking oil, and your mind instantly associates the engine flush product with an oil leak.
If you suspect your vehicle falls into this camp, leave the engine alone and skip the engine flush. It’s probably not worth trying to revive an engine in such poor condition without first fixing the bad seals or other defects. In effect, you’re choosing your problem: either sludge or deposits robbing performance or, if you clean the engine, the seals show their true condition. Some people also claim that an engine flush will free large chunks and cause an avalanche of debris to clog passages inside your engine. Don’t worry, Technolube and Gear Flush clean at the molecular level, ensuring the deposits are dissolved and properly exit the engine with the oil when it is drained. This helps the new engine oil get off to a “clean start” and allows it to perform to its engineered capacity.