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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 12-11-2012, 07:06 AM
guywithabmw guywithabmw is offline
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Is it ok to mix engine oils?

Like Castrol and Mobil?
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  #2  
Old 12-11-2012, 07:32 AM
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floydarogers floydarogers is offline
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Quote:
Originally Posted by guywithabmw View Post
Like Castrol and Mobil?
Won't hurt; especially if they're both LL01 or similar.
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  #3  
Old 12-11-2012, 07:36 AM
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Zooks527 Zooks527 is offline
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For "need a quart" situations in between oil changes, I've never worried about this. Don't know if I'd do it for an oil change (i.e. - 4 quarts this, 3 quarts that), though.

FWIW,
George
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  #4  
Old 12-11-2012, 05:23 PM
guywithabmw guywithabmw is offline
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Help!

The manual says use 5w-30 or 5w-40 for top offs.

I bought Mobil 1 5w-30.

Then I get on the website and it doesn't say its on the list of approved oils?

I have a 2008 328xi.

I only topped off like half a quart.

What do I do now?!?!?
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  #5  
Old 12-11-2012, 07:10 PM
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floydarogers floydarogers is offline
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Quote:
Originally Posted by guywithabmw View Post
The manual says use 5w-30 or 5w-40 for top offs.

I bought Mobil 1 5w-30.

Then I get on the website and it doesn't say its on the list of approved oils?

I have a 2008 328xi.

I only topped off like half a quart.

What do I do now?!?!?
Don't worry about it. Use the oil in your lawnmower (or other vehicle). Buy a bottle of Mobil 1 0W-40 to use in the future. Look for LL-01 on any bottle you buy. Or look for ACEA A3/B3/B4 (which is what LL-01 essentially is.) Pay no attention to API or SAE ratings, they're c%^p.
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  #6  
Old 12-11-2012, 07:21 PM
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MMME30W MMME30W is offline
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What he said. ^^^^
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  #7  
Old 12-12-2012, 04:30 AM
usaret usaret is offline
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Quote:
Originally Posted by guywithabmw View Post
Help!

The manual says use 5w-30 or 5w-40 for top offs.

I bought Mobil 1 5w-30.

Then I get on the website and it doesn't say its on the list of approved oils?

I have a 2008 328xi.

I only topped off like half a quart.

What do I do now?!?!?
You're good. Don't give it a second thought.
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  #8  
Old 12-12-2012, 07:25 AM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by guywithabmw View Post
Help!

The manual says use 5w-30 or 5w-40 for top offs.

I bought Mobil 1 5w-30.

Then I get on the website and it doesn't say its on the list of approved oils?

I have a 2008 328xi.

I only topped off like half a quart.

What do I do now?!?!?

Hush up and never, ever give any forum participant your real name.

Your warranty is in peril and once noted as a transgressor, your will be cursed for the rest of your days to deal with a negative database entry, available to all manufacturers.

Don't let that happen to you!
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  #9  
Old 12-12-2012, 07:31 AM
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madurodave madurodave is online now
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Location: NH
 
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Mein Auto: 2007 Z4+X3, 2006 530Xi
Quote:
Originally Posted by guywithabmw View Post
Help!

The manual says use 5w-30 or 5w-40 for top offs.

I bought Mobil 1 5w-30.

Then I get on the website and it doesn't say its on the list of approved oils?

I have a 2008 328xi.

I only topped off like half a quart.

What do I do now?!?!?
Sell the car - it is ruined!

JK - no problems. I have been using Mobil 1 5w-30 long life oil since day 1. 130000 miles on my X3, 101000 on my 530, 45000 on my Z4. No motor problems on any.
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  #10  
Old 12-12-2012, 09:39 AM
rdorman rdorman is offline
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Don't worry. Just do try and buy oils with the correct ratings and in the weight 'neighborhood'.
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  #11  
Old 12-12-2012, 07:52 PM
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SilverX3 SilverX3 is online now
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Like mixing coke and Pepsi you will be fine
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  #12  
Old 12-13-2012, 02:25 PM
dmatre dmatre is offline
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Quote:
Originally Posted by CALWATERBOY View Post
Hush up and never, ever give any forum participant your real name.

Your warranty is in peril and once noted as a transgressor, your will be cursed for the rest of your days to deal with a negative database entry, available to all manufacturers.

Don't let that happen to you!
Agreed. Car is ruined, no chance for warranty.

Just 'cause I'm a nice guy, I'll offer to take the car off your hands for scrap value... but today only.
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