When you put Seafoam in the engine oil, do you do it right before you are going to change the oil? Or do you put it in right after the crankcase is full of the new oil, and run it for the life of the oil change? The can (and website) is unclear about this, and I don't want to trash the engine (my only driver). Anyone with experience? Thanks!!
http://www.seafoamsales.com/motorTuneUpTechGas.htm
http://www.seafoamsales.com/motorTuneUpTechGas.htm
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