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| Blackstone analysis: 2016 M235 with ~5K miles on the OEM oil |
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| 09-03-2018, 02:17 PM | #1 |
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Major General
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Blackstone analysis: 2016 M235 with ~5K miles on the OEM oil
Attached is my first Blackstone analysis for my 2016 M235 with ~5K miles and 6 months on the OEM 0W-30 oil (2016 M235s came with OW-30). The car is 2.5 years old, has ~26K miles now, and has run the Dinantronics Sport since Feb 2018. I'm a fairly hard driver and use boost often on the street, though I don't do any sort of track driving. I always make sure to warm up the oil to 200 degrees before really pushing the motor.
As you can see, the motor and oil are showing no ill problems with wear or breakdown after ~5,000 miles (disregard their 6,200 mile typo). The oil viscosity was starting to get close to it's lower end range, suggesting it may had another 2,000 miles or so until it fell out of its viscosity spec. That suggests to me that the 1 year/10K factory oil change interval is likely pushing the limits of the oil. 
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| 09-03-2018, 08:22 PM | #2 |
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Second Lieutenant
 
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Run it out to 7.5-8k miles next time and see what the viscosity does. I'd also want to see what the TBN looks like. UOAs from my old Mazdaspeed 3 indicated that a 10k OCI was fine using M1 5W-30. My son's E90 328i is running fine north of 120k miles on a 15k mile OCI; it's always run BMW TPT 5W-30 or 0W-30.
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