Contour Enthusiasts Group Archives Forums General General 10w30 or 5w30 Mobil1 post your reasoning

Yeah, when your engine blows, and you tell 'em you use 10W-30.. in you last model Contique, Will they still warrant it???
Prolly''' but then again, maybe NOT!!!
Use the 5W-30
NoT 10W-30
NOT 5W-40
NOT 10W-40
NOT old chicken grease with a gasoline thinner..