I've been running Amsoil Signature Series 5w-30 in my EP3. Can't tell a difference in HP or gas mileage, but UOAs show it is good stuff. Amsoil's MTF is the only fluid I use in my tranny that prevents grinding, slipping, and that "notchy" feeling.
Check out http://www.bobistheoilguy.com/forums...s.php?ubb=cfrm for any of your oil needs. Lots and lots of info over there on oils.
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