GMC Envoy getting bad gas mileage

Asked by Feb 04, 2017 at 08:40 PM

Question type: General

So I bought this used 02 4.2l GMC Envoy SLT. It has 160k
on it and I wanted to buy a small SUV that could get me
16-20 MPG. They usually get 16-19 according to previous
owners, and on my electronic rating it says there's an
average of 17.4
The car holds 18 gallons but I can only go about 200 miles
on one fill up and I don't understand why. (I'm not much of
a car person AT ALL)
Can someone give me an idea of what to do? I have
college next year and I have to go 40 miles a day total for
it and I'm 17 and can't afford it.

5 Answers

74,575

If this is city driving don't expect to get any where near 20 mpg. If economy is important get a Honda Civic. A tune up and filter change might help a little but probably not that much.

74,575

Even a small SUV with a 4 cylinder engine may not get 20 mpg in heavy stop and go.

I'm not expecting to get 20 in the city. I usually am driving 35-45 whenever I go somewhere that's not on the highway. I need it to actually average 16-19 and not get 11 overall.

74,575

I think you have the wrong vehicle for your needs. Even new it would not get that mileage in the city and now it has 160,000 miles on it.

74,575

Do you have over sized tires on it? if so that can cut your mileage a lot.

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