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engine flush? 700 1990

posted by  Volvodad on  Tue Jan 23 10:58 CST 2007
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last visit: Thu Oct 23 16:18 CST 2014
[RELATED]

GM issued a bulletin a few yrs ago to dealers telling them to discourage owners from using engine flushes due to incompatibility with certain engine parts (meaning seals, I expect) and stating that failures associated with flushes would not be covered by warranty.

That plus the continuing failure of aftermarket snake oil pushers to provide unbiased, third-party laboratory evidence of the worth of their products tells us "don't bother".

Quality oil and filter, change as per owner's manual - that's all you really need.
--
Bob (son's 81-244GL B21F/M46, dtr's 83-244DL B23F/M46, my 94-944 B230FD and 89 745 (LT-1 V8); hobbycar 77 MGB, and a few old motorcycles)






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