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Seth Swoboda · 04-16-2018, 03:34 PM

According to Shell's web page the Rotella T4 15W-40 is rated for higher temperatures than the old Rotella T. That is the only difference I could find.

04-16-2018, 03:34 PM	#4
Seth Swoboda Senior Member Join Date: May 2010 Location: Southern Illinois Posts: 3,807	Re: Rotella Oil Question According to Shell's web page the Rotella T4 15W-40 is rated for higher temperatures than the old Rotella T. That is the only difference I could find.