I saw T6 5W-40 last night at my local Walmart. On the back it notes 228.31, and denotes for diesels. I'm not an oil chemist, just saying. Probably low SPAsh formula....always used rotella T6 in my smarts, bikes and many more cars .. you can use that crap in pretty much everything.. it offers awesome protection and for bikers, it's compatible with wet clutches .. available here in 5w40 and 0w40... When i cross the border to usa i can get a gallon for like 20$ and it's full synthetic oil.