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Old 02-24-2008, 06:56 PM   #1
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Highway mpg?

What highway mpg do you average?

I just went 152 miles on the highway at 70 miles per hour in about half a tank.

that seems unbelievable. I've got I6 with some mods (sig) 5 speed and 6" of lift with 35s..

On my odometer it says ~129 and i dont have a corrected speedo gear

the gear i need for my tires is 29 tooth and now i have 34 tooth gear so to do the math 34/29=~1.17 on other words my speedo reads 17% slower.


129 x 1.17 = 152.1

60 x 1.17 = 70

What do you get?

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Old 02-24-2008, 07:09 PM   #2
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My Rubi is fairly heavy with winch, armor, bumpers and swing away with 33's.
It runs 450-600 miles a week mostly highway and most of that at 73 mph (speed limit 65). I get a little over 15 mpg.
The dummy light comes on at 234 miles and it will take about 15-15.5 gallons of gas at that point.

All mileage figure with a GPS since you cant just drop a speedo gear in a Rubi

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Old 02-24-2008, 07:24 PM   #3
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i average 15 16mpg 3speed, 33s , 3.73s and correct speedo
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Old 02-24-2008, 07:36 PM   #4
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Stock I get 20 MPG on the highway.
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Old 02-24-2008, 08:34 PM   #5
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14 mpg on high way
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Old 02-24-2008, 11:45 PM   #6
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33's, 4.56 ratios, front bar,high mount winch,rockers, rear bar, camping gear, 2 people

I get 13.5 m/gal hwy and city driving

no camping gear and 1 person i get 14 m/gal hwy and city driving
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Old 02-25-2008, 01:07 AM   #7
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At 70-75 I get about 140-160 miles per tank full
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Old 02-25-2008, 06:42 AM   #8
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I have been getting about 12 lately. But all my driving is short trips to and from work across town. About 5 miles right through town.
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Old 02-25-2008, 09:20 AM   #9
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Bumper, winch, spare tire and rack, two gas, tools 35" with 4.88
3 speed auto ..............13mpg
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Old 02-25-2008, 12:49 PM   #10
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About 16 or so. I avg 15.8 which includes about 5-10% driving in town.
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Old 02-25-2008, 01:53 PM   #11
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i go 60 mph and i get about 14 mph average, but thats with 6 miles on highway a day and 15 miles backroads per day
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Old 02-25-2008, 03:06 PM   #12
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I get 150 miles per tank around town @ 15 gallons per fill. = 10 mpg.

Last highway driving I did, I got around 12-13 mpg.

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