FROM AN EDMONDS BLOG ON ULTIMATE AWD --
Please be advised that Castrol Syntec 5W-30 DOES NOT meet the necessary oil specifications required for any BMW built since at least the late 1990s. Running that oil is a recipe for a sludged engine and a refusal from your dealership/BMW for warranty repairs if/when the engine fails. The only Castrol Syntec that meets the BMW LongLife-98 and LongLife-01 oil specifications (equired for every gasoline powered BMW sold this decade is Syntec 0W-30. That said, you can buy a Castrol produced oil under the BMW label from your dealership that is in fact a 5W-30, but make no mistake, that is NOT the same oil as is in the Castrol Syntec 5W-30 bottle.
For all who buy their own oil, the only two generally available LL-01 oils sold here in the U.S. are Mobil 1 0W-40 and Castrol Syntec 0W-30.
Best regards,
Shipo
so, just wondering.. Are the 3.5L v6 used in the vehi the same ones used in the troopers? do most of you guys have oil burning problems?