2006 Denali gas mileage

[Kurt505]

I'm thinking of buying a 2006 Denali for my son and I was wondering if someone with a 2006 (or probably any 2004-2007) Denali pickup could tell me how they are on fuel? I have a 2013 chevy 2500hd with the 6L engine and it's a lot harder on fuel than my 2008 1500 with the 5.3. I'm not sure if it's just the engine or because it's a 3/4 ton.

[jpohlic]

It's probably the engine. I have a 2012 GMC 3500 with the 6.0 and it burns 17-18l/100km empty and 28l/100 km with a 3500 lb camper

[Sooner]

Everyone I know who has a 6.0L says the same thing, loves it's fuel. Everyone I know who had the 5.3 said they loved the fuel economy it got. One owner drove a Suburban with the 5.3L and loved it do I doubt 3/4 ton means much.

Can you get a Denali with the 5.3?

[Kurt505]

Originally Posted by Sooner

Everyone I know who has a 6.0L says the same thing, loves it's fuel. Everyone I know who had the 5.3 said they loved the fuel economy it got. One owner drove a Suburban with the 5.3L and loved it do I doubt 3/4 ton means much.

Can you get a Denali with the 5.3?

I have a Tahoe with the 5.3 and it gets excellent mileage for a full size SUV. I'm not sure about the 5.3 Denali, the one I'm looking at has a 6L.

[elkhunter11]

The Denali uses all wheel drive, which uses more fuel than the standard system which can be driven in two wheel drive.

[Penner]

If it is the 6.0L (fairly certain it is) fuel economy won't be stellar. All wheel drive and wider tires don't help compared to a SL, SLE, or SLT. From 2014 onward you could get a Denali with either the 5.3L or 6.2L. Incidentally the 6.2L is far superior than the old 6.0L and is very good on fuel although I believe it is recommended to run on 91 octane.

For comparison my 09 with a 5.3L averaged around 13.5L/100km. My 17 with the 5.3L is averaging around 11.0L/100km.

[jstubbs]

One of my first vehicles I owned was an 05 Sierra Denali. I got 19L/100km on the dot in that thing on average city driving as a young kid with a nice truck (and when it came to the dead of winter and tons of snow, I was getting as bad as 21L/100km). Highway cruising in the summer I got closer to 15L/100km, which isn’t bad considering those trucks came standard with fulltime AWD and 4.10 gearing. That 6.0L LQ9 engine made the truck fairly fast for what it was, too.

I miss that truck a lot lately. Never gave me any problems beside an O2 sensor.

[Sportsman]

Our 2007 had the 6.2L engine and it was awesome on fuel. We traded it in on a 2017 Tahoe last year and it’s a gutless gas eating piece of crap.

[Kurt505]

Well I bought the Denali, I figure it'll get about 525km to a tank which is almost what my Chevy LTZ with the 5.3 gets but I've got a lift and bigger tires on that one. I got one happy boy too! Lol.

[Blastoff]

6 litre is a pig on fuel, I have one, not my every day driver, I had a 5.3 engine.
I suspect he better get second job to pay the fuel. The 6.2 is a good fuel miler, but you can't get it in a 2500.

[Kurt505]

Originally Posted by Blastoff

6 litre is a pig on fuel, I have one, not my every day driver, I had a 5.3 engine.
I suspect he better get second job to pay the fuel. The 6.2 is a good fuel miler, but you can't get it in a 2500.

I get the same mileage out of a tank of fuel on my 5.3 1500 as my 6.0 2500, but the 2500 has about another 40L fuel capacity over the 5.3

[jstubbs]

Originally Posted by Kurt505

Well I bought the Denali, I figure it'll get about 525km to a tank which is almost what my Chevy LTZ with the 5.3 gets but I've got a lift and bigger tires on that one. I got one happy boy too! Lol.

Nice! That’ll be a good truck for him!

[Suzukisam]

You can’t put a price on happiness.

[mooseknuckle]

I was not spending enough on fuel with the 5.3 suburban. Only proper thing to do is to drop in a supercharged 6.0. that will fix the problem. Not to mention makes one hell of a grocery getting sleeper!!

[Kurt505]

The way I see it, if it likes to burn the fuel maybe he won't be going anywhere he doesn't have to go

[tool]

As the saying goes, if you have to ask, you likely can't afford it.