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2011 silverado 5.3L AFM oil consumption

JPettigrew

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JPettigrew New Member

JPettigrew

Posted
Posted

I have about 113000 miles on my truck and notice it's burning alot of oil. I bought the truck at 72000 and it was very well cared for through the dealer before I got it and since then I have been changing the oil. The last two oil changes had a low amount of oil left in the engune. This time I measured it at 3.75qts drained after adding 1.25 qts earlier in the day when oil life reading 2%.

 

I have since been reading some old threads about oil consumption in 5.3L with AFM. I am assuming I am beyound the warranty. Has GM figured out how to fix this problem? I also have a very good and trustworthy mchanic to take it too if needed. I can keep adding oil but all that oil burning probably has some harmful side effects that I am not aware of.

 

Any advise would be greatly appreciated.

MaverickZ71 Senior Enthusiast

MaverickZ71

Posted
Posted

The most important thing seems to be turning off the AFM function as soon as possible, via a Range V8 module or revised PCM tuning such as Blackbear or Diablo.

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