03z71chevy
Full Access Member
On my last highway trip I averaged just under 16 mpg on my z71 that's running 285's. That's with the cruise control set at 73 mph, no a/c and no passengers. Around town I typically get right around 13 mpg.
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20+ highway 65-70mph/2000rpm... the sweet spot, on the ramp, of the ramp, no stop and go.
I get around 14 mpg going back and forth to work, it's only 2.5 miles each way, stop and go, it doesn't even reach operating temp.
If that's the sweet spot, it's no wonder I can't get anything above 16 even on highway. Got 5.3 L 4x4 (running 2wd mode most of the time), 3.73 rear, all stock. Around town avg 13-14. On highway, I cannot travel 65-70... too slow for me.