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can the e70 run 5w20? can the e70 run 5w20?
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  #1  
Old 09-01-2010, 01:01 PM
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can the e70 run 5w20?
car has 40,000 kms and this whole time it's been running castrol 5w30. but now i have a jug of mobil 1 5w20. is it safe to run this oil? thanks.
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Old 09-01-2010, 01:59 PM
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I wouldn't use it. 20 weight is pretty thin.
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Old 09-01-2010, 04:01 PM
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I wouldn't.


But, if I were tempted to use the jug of 5w-20, I would buy a jug of Mobil 1 5w-30 or 5w-40 and mix it 50/50.
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Old 09-02-2010, 12:10 AM
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No.

Not even knowing which of the motor options you have, I'd say no.

Just to use up "a jug" of oil? Crazy...
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Old 09-03-2010, 10:33 PM
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what about castrol syntec 5w40? does it protect better than 5w30?
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Old 09-04-2010, 12:34 AM
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Quote:
Originally Posted by Jeg Norge View Post
what about castrol syntec 5w40? does it protect better than 5w30?
If you have a very high ambient temperature, yes. How hot does it get in Norge?
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Old 09-04-2010, 12:36 AM
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"protect"?

What a strange (yet common) term about oils... it's root is in the fear that oil marketers like to play upon...

Just like you use the correct tool for a particular job, you select the oil for the application. You don't just go to bigger wrenches for more protection.

Do you have a warranty on that car? If yes, use ONLY the oil BMW specs.

There are tens of thousands of posts on "What oil should I use in my BMW?" I'll leave it at that.

A

Edit: We still don't know the motor he is asking about....
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Old 09-04-2010, 10:32 AM
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I would ONLY use the manufactured recommended oil. BMW Longlife in the viscosity that is specific for your region.
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Old 09-04-2010, 10:34 AM
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oh yeah lol its the 2009 30i engine. ok im going to start using the german castrol 0w30 instead of the 5w30 from now on.
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Old 09-04-2010, 01:01 PM
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Quote:
Originally Posted by Jeg Norge View Post
oh yeah lol its the 2009 30i engine. ok im going to start using the german castrol 0w30 instead of the 5w30 from now on.
Sounds like a plan.

Why ask? Your mind is made up.

Oil threads are just a waste of time. (Which does not slow them down a bit.)
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