[EsrTek]

Originally Posted by geeker

Rotella T5 is not a JASO MA certified oil. It is an energy conserving oil which can promote clutch slippage. See http://www-static.shell.com/static/c...c_brochure.pdf for specifications.

Interesting... I admit I know nothing really about oil, figured if they sold it on same shelf as others it was the same. I only wanted to run 10w-40 because that is what the dealer put in it. They have many more yrs Exp then me, so figured it was better to keep my choices along same guidelines.