6.2 what kind of mpg are you getting?

[1meangto]

First tank through our 08 denali is 15.7mpg better than I thought it would be.

 

[luv2cruiserccl]

First tank through our 08 denali is 15.7mpg better than I thought it would be.

18 to 20 with premium at 68 to 70 mph and 13 to 15 ish e85


Sent from my galaxy s4 phone using Tapatalk 2- Please excuse any errors.

---------- Post added at 01:22 AM ---------- Previous post was at 01:18 AM ----------

18 to 20 with premium at 68 to 70 mph and 13 to 15 ish e85


Sent from my galaxy s4 phone using Tapatalk 2- Please excuse any errors.

I should add that I use lucas green bottle in every tank gas not e85 and that helped alot also helped in Acadia as well my yukon xl denali is a 2009


Sent from my galaxy s4 phone using Tapatalk 2- Please excuse any errors.

 

[rbnzrcn]

Averaging 13.2 with 90% city using 91 octane. Current mods are Blackbear tune and Airaid Jr.

 

[powerhaulic]

15+ around town
17.5-20 highway

 

[01Konvict]

Was getting around 15 mostly city if not all and now down to 13.6 on the last tank but that is a 7" lift and 34s with tune so I think its perfect!

 

[DisplacedBuckeye]

Completely stock, and getting 13.7 on the way to work, mostly city driving. Putting in an Airaid MIT with K&N drop in tomorrow.

 

[cav01c14]

Currently getting 10mpg in town driving roughly 4-5 miles per trip. Haven't had a chance to really the it out of town as I just bought her.

 

[bizrjr]

Mid 11's all city so far. Stop light to stop sign type driving. Same as my 13 F150 5.0 was on city mpg.

 

[powerhaulic]

Im 600ish miles into a trip from upstate NY to Daytona avg. 18.2 running consistent 5-10 mph over limit

 

[Jonah52]

I get about 12.5 average over 10 fill ups. I record every mile, and every drop of fuel I buy! I drive mostly in town. I am going on a trip to michigan next week and will be driving there stock, and driving back with my intake on. Interested to see how it does!

 

[devious1]

intake and exhaust only, averaging 16mpg both city and highway

 

[Deephaven]

If I am unlucky I get 11 in town and 18 on the highway. A good day yields 8 towing my boat.

And I say unlucky because it means there is too much traffic to drive like I want to.

 

[powerhaulic]

Back from Daytona towing travel trailer I got in Fla. running 65ish MPH averaged 10.2 trailer weight is appx. 7500#

 

[dre2013]

old thread, but fig'd id post anyways. i just bought an 07 esky ext last weekend, love the truck btw-have wanted one for awhile now.

all stock, 92k miles, factory 18's. my current average is right at 13.1mpg after about 300mi, with a lot of idling (its cold here..and havent had remote start for awhile, so i take advantage of it). id say it idles for at least 10min before i go to work, about 25min on lunch break, and 10min before i leave work.

im happy with the mpg with all of the idling. When i drove back from cleveland (30mi) when i bought it, avg was around 18.3 i believe.

 

[WildernessJeep]

13.7 around town, 14.1 on the highway. AWD sucks.

 

[powerhaulic]

15k miles since i got my '11
15.2 around town
17.5 highway over 70mph
keep it 65mph or less will do 19++

This is my second full size AWD it is the only way to go

 

[Barry822]

15 mpg average since June. Best tank was 18.6 mpg.

 

[WildernessJeep]

15k miles since i got my '11
15.2 around town
17.5 highway over 70mph
keep it 65mph or less will do 19++

This is my second full size AWD it is the only way to go

I say AWD sucks for two reasons: First, you can't turn it off, Secondly, you can't turn it on. I'd far prefer just a regular 4-hi/4-lo transfer case with some auto lockers in the rear axle.

I don't need the AWD when highway driving, and it sucks down fuel and tires unnecessarily. I'd also like to turn it off in parking lots instead of binding the driveline in and out of every parking spot. When I actually do need 4 wheel drive, I always feel like the AWD comes up short. It doesn't split the power evenly between the axles, and it doesn't have a 4-low option. All told, I'd rather the Denali have the standard 4 wheel drive setup.

I recently had my rear axle serviced at a driveline shop and always thought I had some kind of locker in the rear. He says it's just a regular open rear axle, but he also says that most Denali's have an auto locker in the rear. I can hear the brake system activating on slippery surfaces. Is this in lieu of the locker in the rear axle?

 

[WildernessJeep]

Sorry. I just noticed I got up a year in my post. I have a 2005 Denali. I'll wander back over to my tribe.

 

[Barry822]

The noise you hear is your traction control kicking in when you're slipping. Check the RPO codes in your glove box. G80 is the code for the locking rear diff.

Personally I like the AWD. In my caddy I doubt the rear diff would survive very long with over 400ftlb of torque and a 8.5" ring gear.