09-29-2008, 07:39 PM | #1 |
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expected gas milage
Looking at buying a 1970 lifted chevy truck.its got a fresh 350 mild cam,4 speed tranny, w/t 3.73 gears and i think 38/15 tires.i was wondering what kinda gas milage do you think it would get, i know its not gunna be anything great but my daily driver now gets around 12.
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09-29-2008, 07:43 PM | #2 |
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Re: expected gas milage
So you're looking to make an even move? I would guess you will get about the same with this 4X4.You may do a little better/worse depending on your driving habits.
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09-29-2008, 07:53 PM | #3 | |
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Re: expected gas milage
Quote:
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09-29-2008, 08:15 PM | #4 |
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Re: expected gas milage
If was a new vehicle, you'd have to pay a Gas Guzzler tax on it....
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09-29-2008, 08:32 PM | #5 |
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Re: expected gas milage
Yah i dont drive alot and when i do i wouldnt really care about getting off fast or nothin if it means better gas milage. So im thinkin ill get it. i just like the looks of the old lifted trucks. i was just afraid i might only get like 8 or 9.
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09-29-2008, 08:35 PM | #6 |
its all about the +6 inches
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Re: expected gas milage
I would expect 8 - 10, unless you have a LOT of freeway cruising, and keep your foot out of it.
Also, the terrain is important too... if "bville" (where ever that is) has a lot of hills, then I'd say 8 - 10 is a goal that you may not see. |
09-29-2008, 08:40 PM | #7 |
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Re: expected gas milage
What he said, my 86 with 37's and 4 speed gets about 8mpg on a good day with 4:56's and with 3:42's and 35's it only got about 10mpg.
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09-30-2008, 07:55 AM | #8 |
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Re: expected gas milage
ok i got some more info the tires actually are 35/14.5,jkade would your 3:42 gears be better or worse then the 3:73. really like the truck so i think im going to buy it.even though im moving to duluth which is hilly,so ill have to drive slow.and find some other ways to save gas
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09-30-2008, 10:52 AM | #9 |
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Re: expected gas milage
Don't waste your time changing those 3.73's to 3.42's. Those 3.73's are about as high a gear as you would want. 4.10's are often a very good gear ratio for 35" tires.
I'll be surprised if you get better than 8-10 mpg. Those 35's are heavy, 14.5" is a a wide contact patch and your pushing a lifted brick. Enjoy it and don't focus on the mileage, otherwise you won't want to drive it.
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09-30-2008, 10:52 AM | #10 |
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Re: expected gas milage
Oh, btw, welcome to the board and post some pics of your truck once it is yours!
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1970 Blazer with a 400 sbc and 4" lift 1980 Pontiac Trans Am, 455 Oldsmobile 2012 Kawasaki Concours 14 |
09-30-2008, 11:39 AM | #11 |
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Re: expected gas milage
8-10, us 2wd guys with 350's, and 28in tires are only averaging 12-16mpg...lol. Old trucks are great, look good, and get a lot of compliments. I agree, don't look at the gas gauge, or it may make you sick, focus on looks, and driving it. I don't think any of us like the mileages, we love our Chevys though. IMO, just because the economy sucks, and gas prices are out the roof, doesn't mean that these old gas guzzlers have to all be left on feilds, and barns, and rust into the ground.
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09-30-2008, 12:23 PM | #12 |
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Re: expected gas milage
When my 4x4 was a 350 with a straight stick, I got 10mpg in mixed towing my boat and running around town. The few times I took it out on the highway without my boat the best I saw was 13.5 mpg.
Expect those numbers. However if your speedo isn't tracking with a GPS or some other standard like 1 minute exactly between mile markers, you'll never know what you are getting.
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09-30-2008, 07:02 PM | #13 |
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Re: expected gas milage
`72 K2500:350,TH350,3.54s,12.50/33s,12.5 mpg
`72 K20:400,4spd,4.10s,12.50/35s,12.5 mpg
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