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RonC · 08-12-2016, 08:47 PM

I use Shell Rotella 15/40 for Diesel engines (for diesels because it has zinc in it). It's recommended by shell for older gasoline engines requiring zinc additive.

08-12-2016, 08:47 PM	#18
RonC Senior Member Join Date: May 2010 Location: Rhode Island Posts: 1,868	Re: new engine using oil I use Shell Rotella 15/40 for Diesel engines (for diesels because it has zinc in it). It's recommended by shell for older gasoline engines requiring zinc additive.