I recently picked up a 2010 BMW 650i on Bring a Trailer and am currently using Mobil 1 FS 0w-40. It was well cared for and had ~43,000 miles. It's up to 45,000 now. Car is usually in Pennsylvania and NJ, sometimes in SC.
I am fully aware of the potential problems with this engine such as the valve stem seals, oil seal under the alternator bracket, the coolant transfer pipe, etc. I've already changed the two CCV vents as a precaution and the originals were both pristine, but replaced anyway since I already had the new ones. The inside of oil cap is also pristine for what that's worth.
Anyway, as far as the oil to use, I'm pretty sure the M1 FS 0w-40 is the way to go, but have two questions: First, might M1 FS 5w-30 or 5w-40 be slightly better? They both have slightly higher flash points and perhaps a lower Noack. Apparently these engines run hot. And two is LL-01 (like the M1 FS oils) the way to go, or would LL-04 be better?
Here is a picture of the oil sticker under the hood which specs "BMW High Performance Synthetic Oil Part No. 07.51-0 002 545. A quick search shows that this is a 5w-30 LL-04 oil, but I am not sure of that.
I already use M1 FS 0w-40 in several other cars like a Boxster, an old e30, and a Lexus with the 2JZ engine and would like to keep it simple if possible, but want to delay the valve seal issue if another oil might be better.
Thanks in advance!
I am fully aware of the potential problems with this engine such as the valve stem seals, oil seal under the alternator bracket, the coolant transfer pipe, etc. I've already changed the two CCV vents as a precaution and the originals were both pristine, but replaced anyway since I already had the new ones. The inside of oil cap is also pristine for what that's worth.
Anyway, as far as the oil to use, I'm pretty sure the M1 FS 0w-40 is the way to go, but have two questions: First, might M1 FS 5w-30 or 5w-40 be slightly better? They both have slightly higher flash points and perhaps a lower Noack. Apparently these engines run hot. And two is LL-01 (like the M1 FS oils) the way to go, or would LL-04 be better?
Here is a picture of the oil sticker under the hood which specs "BMW High Performance Synthetic Oil Part No. 07.51-0 002 545. A quick search shows that this is a 5w-30 LL-04 oil, but I am not sure of that.
I already use M1 FS 0w-40 in several other cars like a Boxster, an old e30, and a Lexus with the 2JZ engine and would like to keep it simple if possible, but want to delay the valve seal issue if another oil might be better.
Thanks in advance!
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