What MPG are the 6.2 guys seeing on the 09's?

[OMG its Jason]

Just curious.. I wouldn't imagine it being too much differen't than the 5.3

[nc6600]

Well i got about 14 in my 07 Denali with the 6.2 i dont know about the 09's though.

[rogersinsel]

My 5.3 gets 21-22 on the highway and 17.5-18.5 off. A 6.2 cannot touch that. For that matter, the 09 with a 6 speed makes a hybrid purchase look silly.

[Rollin Thunder]

Well i got about 14 in my 07 Denali with the 6.2 i dont know about the 09's though.

I thought you took it back cause of rust???

[nc6600]

I thought you took it back cause of rust???Hence the word got.

[OKLAGMCRUISER]

I thought you took it back cause of rust???

No he took it back because the XM expired :insane:

[nc6600]

No he took it back because the XM expired :insane:lol it was used, the XM trial had already expired when i got it.

[Mr. B]

I get 12 in town. I haven't gotten a chance for a true highway mileage check yet, but with a couple mostely highway drives I got 17.

[scottrick]

i have a 2008 6.2L tahoe and get about 19-21 on the freeway and 14-15 in the city with a Volant intake and resonator delete. i know its not a 2009 but hope this helps

[OKLAGMCRUISER]

my brother has an 08 denali awd truck and is getting around 12 in town and 14-15 hwy

[mlwald79]

on my 08 denali i get 12-13 city and 18-19 hwy, with 24s.

[OMG its Jason]

Appreciate the input guys. It doesn't matter if it's 08 or 09, I thought they came out in 09, what would matter is the denalis AWD, that would lessen the MPG. Since the 4.8 doesn't get as well of mileage as the 5.3, I was just looking to compare.. From scottricks post, it seems to be the same "driver dependant on heaviness of the foot".

[jmac572]

with cruise on goin about 65 i was getting around 20-21 mpg with premium gas while i was home, now it has a volant and resonator delete, so i cant wait to compare... goin from boston to florida in november with it, 4 people and some baggage... so that will be the test

[Yukon Joe XL]

My 08 Yukon Xl 11.9 mpg on the display all the time. When checked with real world it is pretty accurate. Most of my driving is not highway.

[007fl]

'09 2WD
19 straight highway (75mph)
17 average
have seen over 21 highway at 65, just can't keep it there very long lol......

[Bowtye8]

best I am getting with my 09 6.2L 4wd is 16 hwy 14-15 in town. I think to get better than 16 you have to keep speed under 65. Anything over and MPG drops fast.

[OMG its Jason]

best I am getting with my 09 6.2L 4wd is 16 hwy 14-15 in town. I think to get better than 16 you have to keep speed under 65. Anything over and MPG drops fast.

I notice that with the 5.3 as well (20-22hwy and 14-18 city, but if i'm on cruise control anywhere from 45-55 I average 22-26). However I blame that on the gearing. Isn't the 6.2 a 6sp auto?

[Bowtye8]

I notice that with the 5.3 as well (20-22hwy and 14-18 city, but if i'm on cruise control anywhere from 45-55 I average 22-26). However I blame that on the gearing. Isn't the 6.2 a 6sp auto?

Yes the 6.2L has a 6-speed auto. I tihnk I am at around 1700 at 65-70. At 80 around 2000. This is were gas MPG drops to about 14 maybe 15.

I have 3k miles on the truck I hope after about 10k the mpg is better.

[oblidoblido]

Getting around 14 in town and 18 highway, but I have a heavy foot.

[wmgood64]

do the 6.2 have the cyl. deactivation?

[Mr. B]

Yes. On the Denali anyway.

[05Yukon]

do the 6.2 have the cyl. deactivation?

Yes. On the Denali anyway.

No the 6.2 doesnt. Some of the 08s and all 09 are flex fuel.