Are you guys going to go by the manual and use 5w20? What are the warranty implications if 5w30 is used? I heard that 5w20 is bad for engines in the long run... 5w30 should be just fine however since it shears down to 20wt anyways. Point of 5w20 seems to be just the CAFE advantage for manufacturer and mileage gains of a few meters is not noticeable anyways.. [/align]

 

I'd go with what the manual says...just to be safe.