Quote:
Originally Posted by q94f10
Troy Jeup recommends everyone with the s63tu to use this oil as he says the 5w-40 is too thin due to the high temperature these engines run at. I see a lot of people tagging him using 5w-50, but rarely see anyone in the forums mention they are using it, Which I found skeptical. I do push my car often (not on track) and was thinking of going with thicker oil to combat the oil consumption issue.
I did read about the issues with the PCV valves, but I thought the fix for that was installing the BMS oil catch can?
I did change my intakes to the BMS ones last week and did notice oil in the intake tube, but it was very minimal. Do you have a link for the PCV valve replacement? I was unable to find it on fcp euro.
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The 5w-50 does combat the high oil temp problem and that is a good thing, the downside is it takes longer to warm up.
it is beneficial to overall longevity. my liqui moly molygen 5w-40 thins out to a 30 weight oil after having it sent to blackstone for a test.
The catch cans dont really do much on these cars, i have never seen any of them catch a drop of oil.
here are the links from FCP for the replacement PCVs
https://www.fcpeuro.com/products/bmw...-4-11157843150
https://www.fcpeuro.com/products/bmw...-8-11157843151