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Best oil weight?

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Old May 22, 2012 | 02:33 PM
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BlkE55K's Avatar
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2010 E350, 2011 ML350, 2003 996TT
Best oil weight?

What's the best oil weight for a gas 350?
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Old May 22, 2012 | 02:39 PM
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2012 S350 Bluetec 4Matic, Diamond White, P2
That will be in your owners manual. There should be different grades listed for your temperature zone.
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Old May 22, 2012 | 11:49 PM
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oggie's Avatar
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2011 E550 4Matic & 2010 Audi Q5 & 2015 C63 507
5w40 and 0w40 in cold climate.
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Old May 23, 2012 | 10:17 AM
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Originally Posted by oggie
5w40 and 0w40 in cold climate.
http://bevo.mercedes-benz.com/bevolisten/229.5_en.html

Just use 0W-40 Mobil 1 for gas or 5W-40 Mobil 1 for gas or diesel. They work for any temperatures.
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Old May 26, 2012 | 02:35 PM
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2011 GLK350 P1, Multi-media & AMG Pkg; 2010 E350 w/ prem 2; 2018 4Runner SR5 Prem. 4x4
Originally Posted by oggie
5w40 and 0w40 in cold climate.
What about in warm climates...like Hawaii? What's the best? 5w30?
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Old May 26, 2012 | 02:49 PM
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Originally Posted by PHML
What about in warm climates...like Hawaii? What's the best? 5w30?
Mercedes recommends 0W-40 or 5W-40 for all climates.

I believe that Mobil 1 was originally developed as a factory installed oil for Porsche's. It evolved as the oil recommended for European high performance engines.

BTW, I live in Arizona and dealers put in 5W-40 Mobil 1. It's a low sulfur version of 0W-40 and works for both diesels and gasoline engines.
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