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Chippy Minton · 02-20-2017, 04:13 AM

There are oils on the market that are not suitable for older vehicles. Those with the API SM designation do not contain vital additives. Avoid.

02-20-2017, 04:13 AM	#51
Chippy Minton Senior Member Join Date: Dec 2016 Location: Seattle Posts: 129	Re: Engine Oil? There are oils on the market that are not suitable for older vehicles. Those with the API SM designation do not contain vital additives. Avoid.