Quote:
Originally Posted by pdX5M
Nothing but full synthetic - unless you want to add to this thread that your S63 grenaded too. If you're driving an X5 M the cost of synthetic oil should be the least of your worries. I use Liqui Moly Molygen 5w-40 with their Liqui Moly Ceratec additive. 40 is the maximum weight for this motor so don't go above that. Guys in middle east have tried 10w-60 and that went bad in a few thousand miles. Tolerances on this motor are too tight.
And they are M cars so they're meant to be driven hard not babied - just need to follow proper procedures.
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Ok, will do that. It also says on the dash that it needs an oil change every 20K km? that's like once a year or even longer. Seems too long.