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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Tracking, Autocrossing, Dragstrip, Driving Techniques > Anyone running 10w60 or 15w50 on n52 for track duty?



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      06-11-2020, 11:11 AM   #1
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Anyone running 10w60 or 15w50 on n52 for track duty?

For track duty, anyone here have experience running bmw 10w60 or 15w50?

Im guessing most of the oil burn is happening at sustained high revs, so thicker oil might help. Currently using castrol 0w40.
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      08-16-2020, 11:22 PM   #2
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I ran 10w50 or 10w60 (forget which one) in my car at some point as I was going to a track event and said what the hell. Can't say I noticed any difference. In the end I just paid more money. Only did that once, back to running 5w40 castrol
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      09-01-2020, 03:36 AM   #3
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I ran Liquidmoly 5w30 for my track day and my engine got rebuilt and bmw put in 0W30 for the fill. Got 4 autoX days and at least 15 hard runs in the canyons out of it. That was all in one year and now it has BMW 5W30 in it.
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      09-17-2020, 12:24 AM   #4
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If you are still looking at this thread, do not run anything 10W60 in N52. It will be too thick.
There are two things important with track/racing oils:
1. High Temperature High Shear (HTHS)
2. ZInc levels (ZDDP).

15W50 Mobil1 is track oil, but it is also on thicker side. 1300ppm Zinc is really good for track purposes.
Probably best option is Motul 5W40 Sport. But it is $56 for 5ltr on Amazon.
Another good option is Mobil1 0W40 FS as ZDDP level is 1100ppm.
BMW TPT 0W30 is really not good option for track. 5W30 is OK.
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      09-17-2020, 02:20 AM   #5
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Quote:
Originally Posted by edycol View Post
BMW TPT 0W30 is really not good option for track. 5W30 is OK.
Why/why not?
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      09-17-2020, 10:58 PM   #6
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Quote:
Originally Posted by Tambohamilton View Post
Why/why not?
0W30 TPT is FE oil (Fuel efficiency). High Temperature High SHear (HTHS) is around 3, compared to TPT 5W30 which is around 3.6.
Since 0W30 is API SN oil, it means ZDDP levels are not above 900ppm. TPT 5W30 is loaded with ZDDP at around 1150ppm.
Take into consideration that BMW N engines run oil temperature at around 109c to 115c in normal driving. At that temperature 0W30 is actually turning into W20 oil.
IMO, on track, always W40 oil, but if one is going with W30, go TPT 5W30.
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      09-18-2020, 12:58 AM   #7
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great info!
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      09-18-2020, 02:38 PM   #8
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Quote:
Originally Posted by Tambohamilton View Post
great info!
Also, TPT 5W30 is really stout stuff.
For example HTHS is 3.6, which is same HTHS of Mobil1 0W40 but KV100 is lower. That means base stock is really, really good.
That being said, I would personally run M1 0W40 over TPT 5W30 on track as it has more ZDDP and actually Mobil1 is targeting for customers that need oil for dual use, street and track.
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