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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > M Series > E39 M5 (1998-2003)

E39 M5 (1998-2003)

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  #1  
Old 09-07-2011, 06:08 PM
Petlover Petlover is offline
Petlover
Location: Wisconsin
 
Join Date: Jul 2009
Posts: 144
Mein Auto: BMW 530i
BMW Oil & Castrol Oil (5W30)

I am planning to change the oil myself, I normally use Mobil 1 0W40, but my mechanic told me try not to use 0W40 because it is too thin, I live in Wisconsin. He suggests me to use BMW Oil 5W30, but I don't see anyone selling BMW Oil except the dealer, does anyone know any Auto Part selling BMW oil on line.

Then a friend of mine also suggests me to use Castrol 5W30, are they the same?

Please advice.

Pet
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  #2  
Old 09-07-2011, 06:33 PM
ProRail ProRail is offline
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Location: Columbia MD
 
Join Date: May 2006
Posts: 4,599
Mein Auto: 1999 BMW 528A--165K
Quote:
Originally Posted by Petlover View Post
I am planning to change the oil myself, I normally use Mobil 1 0W40, but my mechanic told me try not to use 0W40 because it is too thin, I live in Wisconsin. He suggests me to use BMW Oil 5W30, but I don't see anyone selling BMW Oil except the dealer, does anyone know any Auto Part selling BMW oil on line.

Then a friend of mine also suggests me to use Castrol 5W30, are they the same?

Please advice.

Pet
I doubt it, but that's just me.

Last edited by ProRail; 09-07-2011 at 06:39 PM. Reason: more dumb stuff
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  #3  
Old 09-07-2011, 06:49 PM
d geek d geek is online now
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Location: San Antonio, TX, USA
 
Join Date: Nov 2008
Posts: 2,107
Mein Auto: Camry hybrid + MB e300D-T
Quote:
Originally Posted by Petlover View Post
I am planning to change the oil myself, I normally use Mobil 1 0W40, but my mechanic told me try not to use 0W40 because it is too thin, I live in Wisconsin. He suggests me to use BMW Oil 5W30, but I don't see anyone selling BMW Oil except the dealer, does anyone know any Auto Part selling BMW oil on line.

Then a friend of mine also suggests me to use Castrol 5W30, are they the same?

Please advice.

Pet
What does your owner's manual say?

Castrol sells different types of oils in the same weight. What you care about is the BMW spec "LLxx", and the weight of the oil. I believe Mobil1 0W40 has BMW LL01 approval.
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  #4  
Old 09-07-2011, 07:46 PM
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Edgy36-39 Edgy36-39 is offline
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Location: Northern Virginia
 
Join Date: Jan 2008
Posts: 1,254
Mein Auto: 1999 M3, 2002 M5
Lots of places offer specific BMW oil - Bavarian Autosport is one.

What model is your car? You've posted in the M5 forum. M5s take 10x60.
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  #5  
Old 09-08-2011, 03:21 PM
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timfitz63 timfitz63 is offline
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Location: Lorena & San Antonio, TX
 
Join Date: Aug 2010
Posts: 860
Mein Auto: 2007 X3 (MT)
Quote:
Originally Posted by Petlover View Post
I am planning to change the oil myself, I normally use Mobil 1 0W40, but my mechanic told me try not to use 0W40 because it is too thin, I live in Wisconsin. He suggests me to use BMW Oil 5W30, but I don't see anyone selling BMW Oil except the dealer, does anyone know any Auto Part selling BMW oil on line.

Then a friend of mine also suggests me to use Castrol 5W30, are they the same?

Please advice.

Pet
I don't think your mechanic understands engine oil viscosity ratings; a 0W40 oil will be thicker than a 5W30 oil at operating temperatures, and thinner in cold-weather conditions (which you might want in Wisconsin).

Bottom line, though, is to use the recommended grade of oil found in the Owner's Manual for your vehicle. Here's BMW's list of approved motor oils; note that the 'M' vehicles, as "Edgy36-39" points out, take a different oil grade (10W60 is the recommended grade).
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  #6  
Old 10-02-2011, 06:06 PM
Stubornn Stubornn is offline
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Location: VA
 
Join Date: Oct 2011
Posts: 1
Mein Auto: M5 e39
M machines are totally different. I would suggest stick to 10w-60.....don't get any chance.

Good luck!
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  #7  
Old 10-03-2011, 01:03 AM
ard ard is online now
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Location: CA
 
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Posts: 9,583
Mein Auto: '12 X5 35d/E39M5/996TTX50
Don't go by the 5W30 and 0W40 numbers..look up the SPECIFIC viscosity at 40C and 100C from the mfg's specs. People will be surprised...

All newer Ms take BMW high performance 5W30...which IN FACT has a 100C viscosity that looks close to a "40 weight/..But people that use 'any old 5w30' because that is in the manual are under lubricating.

The older Ms (2000 -ish) required TWS 10W60 (not any 10W60 but that BMW oil)...latter cars can run 5w30 OR 10W60

Personally I like Mobile 1 5W50...hard to get.

M5board.com...but just READ, DO NOT post a new oil thread!
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