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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Is it OK to mix BMW 5W30 oil with M1 0W40?



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      07-04-2012, 01:59 AM   #1
BMWSG
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Is it OK to mix BMW 5W30 oil with M1 0W40?

Is it OK to mix BMW 5W30 oil with M1 0W40?
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      07-04-2012, 07:28 AM   #2
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Originally Posted by BMWSG View Post
Is it OK to mix BMW 5W30 oil with M1 0W40?
For what?

Top ups? Sure.

Trying to make up your own blend? Bad idea.
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      07-04-2012, 03:07 PM   #3
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Why would you mix these? Do you need to top it off? If you need 1 quart or less, that's fine. But I wouldn't mix anymore than that.
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      07-04-2012, 11:19 PM   #4
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My ride need to top up 1 quart of engine oil every month and i had plenty of M1 0W40 but car was serviced by BMW with 5W30.
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