2007 LBZ Duramax burning 5/40 Mobil Syn

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Originally Posted By: A_Harman

I agree. Also, there are better 5w40's out there than Mobil's (assuming you're using TDT), in my opinion. I ran M1 TDT in my Dodge for a while and dumped it early because of high oil consumption. I switched to RT6, and oil consumption has been much less.


yup, had the same problem with my 07 DMax, consumption along with it leaching copper from the oil cooler.. dumped it for RT6.. both problems went away.
 
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