clay101
TYF Newbie
- Joined
- Dec 16, 2012
- Posts
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I run purple farm fuel in my 6.2 might only get 14.2L/100km but not much worse then my duramax lol
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First, only the aluminum block 6.2s recommend premium fuel. If yours has an iron block, you can use 87. Check your VIN code and the 8 th digit indicates which block you have.
I listened for the same noise in mine and just barely hear what you are describing. I think it's coming from the transmission.
Good luck and let us know what you find.