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14T · 02-05-2019, 10:05 PM

Don't think Rotella has zinc any more. Its a moot point in an A as zinc was not an additive when the Model A was new. Zinc was introduced for the high compression engines of the 50's and 60's

02-05-2019, 10:05 PM	#3
14T Junior Member Join Date: Jan 2019 Posts: 2	Re: 30w oil Don't think Rotella has zinc any more. Its a moot point in an A as zinc was not an additive when the Model A was new. Zinc was introduced for the high compression engines of the 50's and 60's