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City gas mileage of 1985 Firebird V6?

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Old 01-11-2013, 04:36 PM
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City gas mileage of 1985 Firebird V6?

Thinking of getting a Firebird with a V6 engine as a daily driver, but I do mostly city driving within a 15 mile radius of my area, mostly stop-and-go traffic. What kind of gas mileage can it get, and how can it be improved?
Old 01-11-2013, 05:40 PM
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Re: City gas mileage of 1985 Firebird V6?

According to the government You should get 16 MPG city. But that's when the car was new. Now? I dunno. I'd say 14-15. The V6 doesn't get as good of mileage as you'd think and the Iron Duke is worthless.
Old 01-11-2013, 06:39 PM
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Re: City gas mileage of 1985 Firebird V6?

Depends on how you drive and condition of everything but 16 give or take sounds about right. Best I can get is about 16-17 town and 22 cruise.
Old 01-11-2013, 07:54 PM
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Re: City gas mileage of 1985 Firebird V6?

with an auto 15/16 should be doable , with a stick 17/18

a few mods should be able to pull down 20-22mpg


my automatic turbo car pulls down around 22/23 in town and 32+ on the highway
i belive fast eddis turbo car is also pulling down something like 18/19 in town and 25-28mpg highway


best advise i could give u for a v6 car to get better gas mileage is a full tuneup and swap the rear gears for 4:10's if u u do not do alot of highway driving

yes the 4:10's make the engine rev higher but they have a mechanical leverage advantage in stop and go driving , they get the heavy car moving with much less throttle aplication , so it takes much les spower to get the car moving and upto speed , once crusing it takes alot less throttle to maintian speed
Old 01-11-2013, 08:10 PM
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Re: City gas mileage of 1985 Firebird V6?

yea 16-20 id say in town when I drive it normal...lol
Old 01-11-2013, 09:25 PM
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Re: City gas mileage of 1985 Firebird V6?

Originally Posted by fasteddi
yea 16-20 id say in town when I drive it normal...lol
I can't drive 55!
Old 01-11-2013, 10:28 PM
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Re: City gas mileage of 1985 Firebird V6?

Originally Posted by fasteddi
yea 16-20 id say in town when I drive it normal...lol
with ur gear swap now milage should go up a lil more , though i hear ya it is hard to stay out of the throttle isnt it
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