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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Tracking, Autocrossing, Dragstrip, Driving Techniques > 335i - What oil are you using at the track/daily



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      10-29-2013, 05:58 PM   #1
raceyBMW
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335i - What oil are you using at the track/daily

As the title says, just seeing if there is any kind of general consensus as to what the 335i owners are using for oil in their track driven cars. I have been using M1 0w-40 for some time now, but have been thinking of switching and can't quite pin down what I want to go with. Any thoughts or insight is appreciated.
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      10-29-2013, 10:45 PM   #2
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Fresh oil... It might be a good idea to go somewhat heavier than stock to deal with the inevitable high oil temperatures:

All-around and track
Any good 0W-40 or 5W-40 synthetic that meets minimum requirements (API SM)
Castrol 5W-50
Mobil 1 15W-50

Specifically for track use:
Castrol TWS 10W-60
Liqui-Moly 10W-60
Motul 10W-60

I for one would not track on the 5W-30 OE oil. It may be OK on the street but at 300 F oil temps I'd feel a lot better with a more viscous oil.

You don't need to use an oil that meets BMW LL-01 unless you want to run extended drain intervals (more than 7.5k mi).
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Last edited by NoTempoLimitN54; 10-30-2013 at 09:38 AM.
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      11-05-2013, 12:42 PM   #3
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bump for more input
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      11-05-2013, 12:51 PM   #4
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I use the Mobil 1 0w-40. We don't see temps high enough to even faze this oil. I've seen a max of 275F on track. Change it after 2-3 track events.
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      11-05-2013, 02:05 PM   #5
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As far as i know, changing to denser oil will "open up" your engine a bit.. meaning you are speeding up its ageing proccess... denser oils should start to be used when your engine has started to consume oil, due to it being a bit "looser" because of its to age and miles run... i personally prefer to make oil changes more frequently and stay with 5-30w than going denser prematurely...

As for oils, here in europe the only one truly 100% sintetic are motul oils.

Sorry for the lack of "technical" words... my english is not that good!

Hope it helps.
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      11-05-2013, 02:55 PM   #6
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i use oem oil both on the track and street no issues and no high temps even in 100f degree weather. I also have the bms thermostat.
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      11-05-2013, 03:10 PM   #7
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There was a spec sheet on the M1 0w40 on the m3 forum, it has one of the highest temp ratings out there. I stick with that on my 330i, but needless to say the oil doesn't see the temps of a turbo car.
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      11-11-2013, 02:08 PM   #8
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Mobil 1 ESP Formula 5w30. I top up 1 L every 40 000 km (i.e. never)
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      11-13-2013, 06:14 PM   #9
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I switched to Total 10W-50 on track. Never had a problem with the OEM 5W-30, but I figured a little more high-temp friendly oil wouldn't hurt.

Total 5W-40 in the winter/off season.
http://store.vacmotorsports.com/tota...oil-p1881.aspx
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      05-02-2014, 08:39 PM   #10
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Rotella t6 5-40
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      05-05-2014, 06:48 PM   #11
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stock oil
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      05-05-2014, 10:35 PM   #12
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5w-30
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      05-06-2014, 09:55 PM   #13
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Mobil 1 0W-40. I dog the crap out my car in Vegas heat with no issues.
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