Quote:
Originally Posted by N2TRUX
I'm not saying that it doesn't benefit from premium unleaded, and that may be what the rep was referring to. Im just saying it will run just fine off of regular unleaded. My wifes 07 will smoke my 09 Sierra CC and I have never used premium unleaded.
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Agreed, the ECM will auto adjust tables based on a few tanks of either. Run 92 it learns, run 87 it learns, run E85, it learns.
Now your not going to get the kick from the 87 tables that the 92 tables produce, but.... its probably not that noticable.
Denali is just looking more and more desirable.