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Sid · 02-14-2016, 11:05 AM

You may want to reconsider the Delo 400 for a flat tappet engine. It has no zinc phosphate and the LE on the label is low emission. The Rotella has a good amount in it as does Shaeffers,and many of the racing oils like Valvoline and and some others.

02-14-2016, 11:05 AM	#19
Sid Senior Member Join Date: May 2010 Location: Rathdrum Idaho Posts: 737	Re: new guy with crazy question You may want to reconsider the Delo 400 for a flat tappet engine. It has no zinc phosphate and the LE on the label is low emission. The Rotella has a good amount in it as does Shaeffers,and many of the racing oils like Valvoline and and some others.