what kind of MPG should I be getting
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Joined: Jan 2008
Posts: 129
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From: nor cal
Car: 87 Z28
Engine: 89 tpi soon tpis big mouth & tubes
Transmission: 700r4
Axle/Gears: 3:43
what kind of MPG should I be getting
I have an 87 Z28 LB9 auto trans (700R4) with 3.43's (thats what the code on the rearend says) California car. It appears to have a local shop type cat back system. It seems to be running very smooth has fair power. I got it wrecked a couple of months ago & it will be hitting the street in a week or so. So I'd like to know what to expect.
Thread Starter
Member
Joined: Jan 2008
Posts: 129
Likes: 0
From: nor cal
Car: 87 Z28
Engine: 89 tpi soon tpis big mouth & tubes
Transmission: 700r4
Axle/Gears: 3:43
Re: what kind of MPG should I be getting
Without A heavy foot. I'm use to driving my Gmc 4X4 2500 w/ a 6.5 TD set the cruse at 60 & rumble to work 37 miles away. Thats what it take to get 16-17 mpg. I'm wondering what the factory est was on these cars, & what people actualy got. Any one running one?
Last edited by tshack; Apr 8, 2008 at 12:50 AM.
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Joined: Oct 2007
Posts: 157
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From: Carbondale/Sciota IL
Car: 1992 Camaro RS
Engine: 305 TBI
Transmission: 700R4 w/transgo 700 shift kit
Axle/Gears: 3.42 posi
Re: what kind of MPG should I be getting
just got to check the mileage on my LO3 with the new 3.42 gears. one trip, one tank, central il to southern il all highway and interstate ran 60-65 on the 2 lane 75 on the interstate got 24MPG with very very little "right foot factor"
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