Quote:
Originally Posted by cb1111
This whole oil discussion is silly as the facts are indisputable - if you value your warranty and longevity of your engine then you'll use the oil that meets the standards required by the manufacturer. If you don't care about either of those then you'll pour in the cheapest crap you can find - or not even bother changing the oil - your car will probably do 50k without self destructing on the factory fill. Why waste your money on relatively expensive stuff like Amsoil when it brings you no benefit and lots of disadvantages.
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manufacturer specs are nice, but the golden rule still applies: "If somethings cheap, its cheap for a reason!" Buying expensive, non approved oils like redline, royal purple, and amsoil, means one thing: Your base oil is solid, especially since BMW expects LL01 approved oil to run for 15K miles, you need a PAO base stock for anything going over 7,500 miles in the N54 engine, period. If you think an approved $4:00 oil like Mobil 1, can handle being baked to 250 deg F daily for more than 7,500 miles, better than $14/quart royal purple, then you need your head examined. Good luck convincing those fools at stores all across america that the $10 difference is unjustified.
