synthetic vs non-synthetic
Well I was planning to change the oil in my 636 when I stopped and wondered. I thought the guy I got it from said it had synthetic in it, but I cant remember. Is there a way to tell if there is or not?
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2005 Joe Gibbs Silverado # 0396
1988 Monte Carlo SS 5.3/T56 and too many mods.
2003 Honda 954RR