Average mpg

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ls1frc

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07 Yukon XL Denali with the 6.2 and a Black Bear Performance 93 octane performance tune. 10-12 in the city; 13-15 on the highway; 16-18 on the highway with the wife in the truck with me.

10-12 city is about what I am seeing, I guess that's just what the 6.2 gets when DOD is off if it's doing that on your almost stock ride. About 2 under my 5.3 then.

Oh well guess gotta live with it lol.
 

Bigshawn

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I usually get around 13.5 to high 14's depending on what kind of driving I do. The biggest thing that hurts my mileage is sitting and idling. I sit in my vehicle alot cause I'm disabled from a head on accident. My pap would always get on me about it and I started keeping track and I'll get high 11's low 12's when I sit in the vehicle. Surprised the hell out of me.
 

kchamber

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I get about 11.5. No highway driving. Mostly city driving stoplight to stoplight.
 

Sparksalot

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I did a 900 mile trip pulling my 1,400# teardrop last week. Lots of hills, and the first time I’ve been able to use tow mode since enabling it. Got 12.9.
 

ls1frc

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I get about 11.5. No highway driving. Mostly city driving stoplight to stoplight.

I have a lot more miles on my cammed 6.2 now.

Stoplight to stoplight with some 40 mph roads between is around 11.5 as well.

Straight highway is right at 19 mpg at 65-70 mph.

That's exactly what the L92 was EPA rated as, 12/19. Seems like DOD on the 6.2 picks up another 2 mpg in the city as it's rated at 14/19.
 

91RS

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My 12 Yukon 6.2 with no AFM just did about 15.5mpg average on a trip doing 75-85mph on the highway.
 

kchamber

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I have a lot more miles on my cammed 6.2 now.

Stoplight to stoplight with some 40 mph roads between is around 11.5 as well.

Straight highway is right at 19 mpg at 65-70 mph.

That's exactly what the L92 was EPA rated as, 12/19. Seems like DOD on the 6.2 picks up another 2 mpg in the city as it's rated at 14/19.

And to be clear my 11.5 is also factoring in some 40ish miles 4000 lbs trailer about once a month. And It's an XL Denali 2008.
 

cfmistry

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My DIC shows 14.4mpg. That is also what Fuelly shows is the avg for an 07 Hoe. My 22” wheels probably don’t help either.
 

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