***5.3L vs 6.2L Fuel Mileage***

[MOBANN1]

Well some of you have alreadt read in another one of my posts, I'm looking for a Tahoe with the 6.2L, now one of the reasons why I want it is of course more power but I also like the idea of having 6 gears instead of 4.

Now with that said, I would like to compare mileage from a majority or the Tahoes here (5.3) to the other Suv's such as the Escalade and or Denali. (6.2)

Post up your City and Hwy mileage. :cheers:

 

[smoothfrc]

I thought someone mentioned that the bigger motors do NOT have the Active Fuel Management system... Not sure if this is true, but that will lower your overall fuel mileage a bit.

 

[chadwick02]

The big motors in the escalades and yukons do not have AFM.
The 6 speed will be available with the 5.3 in 2009. That could be an option if you worried about fuel consumption.

 

[turboedmsp]

my wife drive ours daily city driving and the dic computer in the dash says avg 13.4 13.7 mpg 07 tahoe ltz 3.42 gears. 5.3 liter

 

[BDennis]

I have the 5.3 in my 08 Tahoe the computer says I get 16.8 and all I drive is city if that gives you an idea. My dad has a 2008 Escalade and I drove it the other day his computer says around 14 MPG I cant remember exact but I know its around there. He drives half city and half highway we both do drive on the slower side with rising gas prices though. Hope this helps.

 

[Grillmaster]

Last weekend I set the cruise at 65 mph (yes, cars were flying by me) but after 300 highway miles I averaged 21.1 mpg. That was a round trip so wind was not really a factor. My DIC currently says 15.1. I typically see 13-14 around town (suburbs) and 19-20 driving normally at 70 on the highway. I rarely ever drive around with my 3rd row seats in if that makes a difference. In true downtown Chicago city driving I saw a solid 10 mpg. These things are not made for the big city!

 

[Denali132]

I have an 07 Denali and I am getting 10-12 miles per gallon, mostly city and I have a lead foot. It helps to have a badge.

 

[keala]

i beleive the 09 6.2's will have AFM

 

[hazer396]

I got the one with AFM and i drive about half highway half city in chicago.. and i only get 12.8MPG average.. and yes i got the 5.3L V8

 

[IronMedic]

my denali gets around 19mpg/hwy according to the computer. i get around 12-13 mpg in town on a light foot. pretty good for a 6 speed.

 

[Mike]

my ltz with the 5.3 gets 16 in town

 

[gmcul8r]

I've had both the 5.3 and 6.2 in the new GMT900's and my experience is that the 6.2 gets approximately 15-20% worse gas mileage.

 

[Rollin Thunder]

driving the kon earlier today with a 5.3 and 3.73, aggressive driving style, about 8 WOTS for 15-20 seconds a peice i returned 12.1. Normal driving when im not in a huge hurry to my office when a buddy pulls a prank and says it was broken in to and thats why there are pics of broken glass in my e-mail from him i get about 16 city and 18 highway. very happy actully with that.

 

[Poe1983]

I've had my 08 Tahoe for about 7 weeks now. The computer shows me getting exactly 14.4 mpg so far. When I got the truck it had 250 miles on it and the mpg was 12.7. I do about 90% freeway driving. I try to balance the pedal as much as possible for a smooth ride. I expect to get overall about 16-17 mpg.

 

[TN Tahoe]

I get around 16MPG in town and the best I have done on the highway was 22MPG in the winter.. Summer driving has been around 21 HWY MPG