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Engine flush

12260 Views 16 Replies 9 Participants Last post by  Chris X
Do any of you guys use engine flushes before an oil change as normally i just drop and change but just thought this time to give it an extra boost of cleaning additive before i change.(120,000 miles)
Or is it best to let a sleeping wolf lye?
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Magnuss is right about just adding a quart or two to the engine oil and letting it run for 10 minutes or so before changing oil, this is an old school trick. You should never run the engine with just transmission fluid in it as all transmission fluid is, is a detergent and should not be used as a lubricant. The idea behind transmission fluid is to make your bands in your transmission bind while keeping them cool, not a lubricant.
OK, I'll admit when I'm wrong, it is a lubricant, I just ment to say you shouldn't run your engine with only transmission fluid because of the amount of detergent it contains. A mixture of 4 parts oil and 1 part tranny fluid is ok for ten minutes or so but I wouldn't go any stronger than that IMO. I also learned that the original auto trans fluid back in the 40's used whale oil as a base lube.
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