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Old 10-26-2012, 02:28 PM   #6 (permalink)
gone-ot walking...
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...sounds like Andy Granatelli's STP (Scientificially Treated Petroleum), which DOES have benefits -- just about every engine rebuilt uses it to reduce initial engine wear -- but, almost no further benefits above & beyond normal (synthetic) engine oil of the proper viscosity.

Last edited by gone-ot; 10-26-2012 at 03:37 PM.. Reason: added bold emphasis
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