2003 suburban -- how much mpg

External Since: Jun 28, 2005 Posts: 9

I'm looking at buying one of these for the first time; my first ever 8
cylinder-- Tell me how much MPG I can expect-- I'm told 14-18. I'm okay
with that-- but not a mile under....

External Since: Dec 07, 2004 Posts: 1

My experience with a 2003 Sub LT, 1/2T, 2WD, 5.3L, Calif Emissions, at
25Kmi:

18 mpg Hw (maybe 19 if you're careful), 14-15 City (LA).

"Carlton Clay" <ecarlclay.DeleteThis@comcast.net> wrote in message
news:1M6dnTzzUY18k3XfRVn-2g@comcast.com...
> I'm looking at buying one of these for the first time; my first ever 8
> cylinder-- Tell me how much MPG I can expect-- I'm told 14-18. I'm okay
> with that-- but not a mile under....
>
>

Joined: May 17, 2005 Posts: 1396

It depends on the model, your driving, the climate and terrain. 1/2 tons with a 5.3 might do that well but if you use a/c a lot it may be less especailly in town and your "foot" on the throttle plays a role here too. 2wd models will do better than 4x4 models also. If it is a 3/4 ton with a 6.0, I would not except those numbers at all realistically and it may be more like 12/16 or so if you are lucky. I burb is a heavy vehical and it will use some fuel to move it. I have a much older one, a 89 4x4 1/2 ton that I have had since new and it gets about 13 around town and 17 to 19 on the highway (depending on speed) and it has a different engine than the newer one do to.
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