0W40 in a 6.0L

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Originally Posted By: buster
No, but Mobil 1 T&Suv 5w40 would be.


For a diesel, Mobil 1 for Turbo Diesel Trucks (also known as Delvac 1) 5w-40 is the appropriate Mobil 1 choice. The Truck & SUV oil and 0w-40 is for gasoline engines.
 
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Originally Posted By: Shannow
Will work OK in a diesel.


I certainly would NOT fill my 2005 with Mobil 1 0w-40!
 
I trust EVERYTHING I read on the internet.

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The 6.0L engine is a GAS engine in the GM truck. It's a darn good engine; used in many different tunes from truck to 'Vette.

I would suspect that a good 5w-30 would be a much better choice than a 0w-40. Use M1 if you want, or any decent recognized brand name.
 
I switched my truck (GMC with the 5.3L gas V8) to M1 0W-30 and notice a much easier cold start and the truck idles so much better when cold.
 
Originally Posted By: STG
I trust EVERYTHING I read on the internet.

LOL.gif



I take everything at face value...
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