2001 Denali 6.0 LQ4 Regular or Premium?

[Rmkuper]

What are you all running in the 6.0 LQ4? Manual say regular. I'm really particular about my Camaro 6.2 L99. I only run 91 Shell Vpower. I take it to the extreme by filling at the same station and same pump. But I only put 3K a year max on the camaro. With the Yukon I'm gonna be broke at this rate. Yall think 87 is ok?

 

[rockola1971]

The compression ratio determines what octane gas is needed. If the manual says 87 octane then 87 it is. Using anything higher than 87 is just throwing money out the window. Filling at the same pump? You realize all the pumps draw from the same underground tanks, right? The OCD struggle is real..here.

 

[Rmkuper]

The compression ratio determines what octane gas is needed. If the manual says 87 octane then 87 it is. Using anything higher than 87 is just throwing money out the window. Filling at the same pump? You realize all the pumps draw from the same underground tanks, right? The OCD struggle is real..here.

Thanks for the info. Fully aware...don't judge.

 

[rockola1971]

Thanks for the info. Fully aware...don't judge.

No judgement here. We all have our quirks. Yours is just gas stations.

 

[Bill 1960]

87 is fine. When I had one I logged it with HPTuners and more octane had no benefit.

 

[ROGELIO A GUZMAN]

I use 87 on my 05 Denali. Haven't noticed any difference in performance or mpg with higher octane.

 

[SnowDrifter]

Run what the owner's manual says.

I run premium. But I also have a tune on it - mainly for tweaking transmission shift behavior but it adjusted some timing as well. Couldn't tell ya if it makes any difference, but for the $2-3 per fill difference, I'm not losing sleep over it.

I've heard mixed reports of owners with tremendously carbon'd / dirty engines benefiting from running premium. But that's the extent of it.