Quote:
Originally Posted by Kmeleon
Yes, gm has a bad batch of dfm lifters in the trucks and cars. So it's possible you're having an issue.
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DFM dynamic fuel management I have AFM active fuel management
This car doesn't seem to stay in v4 mode as often or get as good as milage compared to my 2020 SS or 2017 Silverado. V8 MPG seems good but when it goes to v4 mpg is not impressive. it has trouble staying in v4 at 50mph on a flat road.
I just dont know if its a mechanical issue because it only happens on the race track and a battery reset fixes the issue, no issue on the street.