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jrd1990zr1 · 02-20-2007

I am not sure if the oil currently in the car is a synthetic. Is there a problem with any residual oil in the engine mixing with the Mobil 1?

Thanks guys for the advice.

02-20-2007	#4
jrd1990zr1 Join Date: Dec 2005 Location: Delanson, NY Posts: 926	Re: Opinions on oil I am not sure if the oil currently in the car is a synthetic. Is there a problem with any residual oil in the engine mixing with the Mobil 1? Thanks guys for the advice. __________________ 1968 convertible Lemans Blue, 1986 coupe Medium Blue NCRS Top Flight (sold), 1990 ZR1 #2529 Red NCRS Regional and National Top Flight (sold), 1990 ZR1 #2124 Charcoal Metallic NCRS Top Flight 2010 & 2018, 2003 Anniversary Red Convertible (sold)