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Is Your Gmt-900 Truck Or Suv Using Oil

RyanbabZ71
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Is your GMT-900 using oil  

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MaverickZ71 Senior Enthusiast

MaverickZ71

Posted
Posted (edited)

2+ years later, after having the TSB performed, switching to Dexos-spec motor oil (not required on the 2009s), short-changing on the OLM-indicated oil change intervals, and deactivating AFM via a pcm tune, 

 

I can unequivocally state:

 

WHY YES, YES IT IS. 

 

🤬

Edited by MaverickZ71
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GuyGene
GuyGene

I've been watching this oil usage issue a long time now. Sick of it. My '96 5.7 used NO oil! And I could get 20 mpg highway. Extended cab, loooong bed too. Dagnabbit, GM is running customers away.

Jsdirt
Jsdirt

Yep - they've forced alot of manufacturers to cut corners just to survive.   The EPA has done more harm to this nation the past 20 years than good. Another gigantic, bloated, goverment bureaucracy t

Cowpie
Cowpie

It is a sad testament to GM quality. My factory remanned 12.7L Detroit, 704,000 miles into its second life, only uses about 1 qt per 10,000 miles. Just did oil change on it at 21,580 miles on the oi

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