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Most all engine flush chemicals are mineral spirits or kerosene with some other detergents added in... Last time I checked, mineral spirits and kerosene wasn't designed to be used in a crankcase of an engine either.


well, you did not convince me by your arguments. Using your approach, both urine and cofee are just water with some other detergents added in... but you cannot interchange them and you cannot argue that while it is OK to consume a cup of cofee, this is quite unusual to consume urine...

Regards,
Oleg