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Originally Posted by John Holmes III
Around twenty years ago I was running a mom and pop auto parts store. A fellow came in and bought a quart of engine flush. He looked like the type that would get really p.o. if I warned him about not using it so I kept my mouth shut. The subject car was a early seventies Olds with a 455. It sounded a little ragged, but nothing too alarming. The next day the same guy came flying in the store wanting to kill somebody because he dumped the flush in and drove around for a couple of hours.....until a rod came through the block.
Engine cleaner is kerosene, and shouldn't be used for the same reason you shouldn't use detergent oil in a car that had been run on non-detergent oil. All the crud gets knocked loose and plugs up the motor(esp the oil pump pickup), ergo no oil pressure... and a thrown rod.
Frequent oil changes are best, though I have been guilty of putting a little Sea Foam in the oil to free up lifters and rings. I always worry about reducing the lubricity of the oil. Anyways, just my .02 cents.
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Hey thanks for that repsonse. That was one of the better repsonses and very detail filled. What you said makes alot of sense, and it makes me wonder even furthur what really is the benefit of using this product.
I'll also be talking to my friend, who uses an engine flush product for every oil change on his 2003 Honda Accord(since brand new) and does his oil changes every 4500 kms. He maintains its the reason his oil comes out looking new, but i wonder if he's damaging his car by thinning his oil. He thinks his car's engine will last forever as sludge and junk will never deposist in his engine......