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Old 08-06-2013, 01:47 PM   #1
tex_waco_usmc
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Square Diesel 4X4 Burb Mileage???

I am looking at a 4X4 burb with the diesel. What kind of mileage can I expect to get on a factory setup? Are there any upgrades that make it get better mileage?
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Old 08-07-2013, 11:42 AM   #2
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Re: Square Diesel 4X4 Burb Mileage???

Should get 18-22,maybe 24 mpg,if it's got overdrive. A couple few less without that,unless you drive slower. But,at least 18.
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GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
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Old 08-07-2013, 06:18 PM   #3
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Re: Square Diesel 4X4 Burb Mileage???

6.2? Pretty much all stock? Then i would echo what special said.
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Old 08-08-2013, 02:13 AM   #4
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Re: Square Diesel 4X4 Burb Mileage???

18-22 stock 16-24 with a banks turbo setup.
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1991 Chevy suburban 3/4 ton 4x 4:56 and pulls great
1979 Chevy 1/2 ton long bed diesel
1974 Chevy crew cab short bed 3/4 ton 4x4 project
1991 Chevy suburban 2wd
1984 Chevy suburban 3/4 ton 4x 6.5 detroit with turbo
1961 Chevy pickup 1/2 ton 2wd
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Old 08-09-2013, 09:25 AM   #5
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Re: Square Diesel 4X4 Burb Mileage???

You can have the injection pump tuned as well, either for mileage or power. We had an '83 when I was a kid that had the pump worked, and it would click off 22 all day long with a TH400, 31's and 3.42 gears. I loved that truck.
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Old 08-09-2013, 09:31 AM   #6
tex_waco_usmc
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Re: Square Diesel 4X4 Burb Mileage???

And if I convert it to 2WD???
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Old 08-09-2013, 09:41 AM   #7
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Re: Square Diesel 4X4 Burb Mileage???

2wd may get a couple better MPG. These motors are all about torque,so not many factors detract from the mileage. They don't work harder till you add a lot of drag/weight. My '91 3/4t 4wd had 4.10s,4L80E,and 12.50/35-16 mud tires on 10" steel wheels and got 22mpg with 1000# of tools/cargo
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim

"Don't call me a redneck. I'm a rough cut country gentleman"

R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
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Old 08-09-2013, 02:29 PM   #8
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Re: Square Diesel 4X4 Burb Mileage???

Quote:
Originally Posted by tex_waco_usmc View Post
And if I convert it to 2WD???

i do not think it makes any difference 2wd or 4wd i've owned both no noticeable differences.
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1991 Chevy suburban 3/4 ton 4x 4:56 and pulls great
1979 Chevy 1/2 ton long bed diesel
1974 Chevy crew cab short bed 3/4 ton 4x4 project
1991 Chevy suburban 2wd
1984 Chevy suburban 3/4 ton 4x 6.5 detroit with turbo
1961 Chevy pickup 1/2 ton 2wd
1975 gmc crew cab short bed 2wd
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Old 08-09-2013, 06:01 PM   #9
68Timber
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Re: Square Diesel 4X4 Burb Mileage???

Even with 4x4 they're good on fuel. They take a square from thirsty beast to pretty economical as far as full sized trucks go, even against the new stuff.
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Old 08-09-2013, 07:17 PM   #10
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Re: Square Diesel 4X4 Burb Mileage???

Yep,they're the classic 4wd that makes sense for today...better than many new trucks...even with big tires!!
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"

GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim

"Don't call me a redneck. I'm a rough cut country gentleman"

R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
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