Realistic OBS fuel milage - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 12 (permalink) Old 08-02-2011, 12:50 AM Thread Starter
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Realistic OBS fuel milage

I have a 97(cali) CCSb w 4:10s 5spd and RSKw SD springs and 315s. Has a DP tuner, 3" DP & 4" exhaust, napa 6637 What is the most realistic MPG that i should be seeing? I am getting about 13/15 city/hwy. Hwy is cruise set on 65

My old 97 RCLB 4:10 5spd RSK and 315s I could squeak out 19MPG on a all highway trip doing 65MPH

Looking for Blue 40-20-40 seat for OBS. PM me if any known
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post #2 of 12 (permalink) Old 08-02-2011, 02:01 AM
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Re: Realistic OBS fuel milage

Since your cali has split shots(correct?) our trucks are somewhat similar, but i have stock suspension and 285's. When i went down to Unlimited Diesel it was 2.5 hours on back-roads running 50-60, and playing a little if i got bored. I averaged between 19-20 mpg's there. Coming home i ran on the highway from 70-90mph in rush hour traffic at times, and got 16.5. City driving i've seen it as low as 13.5 and as high as 17ish with my AD's.

Keep in mind i have an injector not firing, leaky up-pipe gasket causing the turbo to not lite until 2k RPM's, and a tranny that was going out. And i'm a teenager, so i don't drive it easy all the time.

Jimmy
97 F-250 ECLB 7.3/E4OD/4wd, 215k miles: FFD 250/200%'s, Swamps IDM, built trans, shimmed 910's, Melling LPOP, welded cam gear/modified pick-up tube, Homemade e-fuel/intake/exhaust/traction bars, D66, Built and tuned by me

97 ECSB F-250 project truck. Current plans: 7.3, BTS, 250/2's, 468, stock bottom end
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post #3 of 12 (permalink) Old 08-02-2011, 03:15 AM
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Re: Realistic OBS fuel milage

I get about 14 average. i could easily do 16 if i drove it nice. Im going on a 1000 mile road trip this weekend, going to try and keep it to the speed limits and see what she'll do. I have a 95 CCLB with 285s, 3.55s, auto and 160cc single shots.
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post #4 of 12 (permalink) Old 08-02-2011, 03:21 AM
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Re: Realistic OBS fuel milage

i have a F-350 95 RCLB E40D, w/ts chip set on extreme, IC, and 3.55 gears, running 235/85r16's. last trip i made was roughly 160 miles and i got 19.5 mpg.

1995 F-350 RCLB 4x4
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post #5 of 12 (permalink) Old 08-02-2011, 02:59 PM
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Re: Realistic OBS fuel milage

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Originally Posted by codypowerstroke View Post
i have a F-350 95 RCLB E40D, w/ts chip set on extreme, IC, and 3.55 gears, running 235/85r16's. last trip i made was roughly 160 miles and i got 19.5 mpg.
I'll take one of those!!! I get roughly 13MPG, but I am running 350's on a stock truck I am in the hunt for some stock rims and tires.

Jake Brown
1995 Ford F-350 4x4 CCLB, ZF5, Solid mass Flywheel, Banks Technicooler, DYI 6637, 3in downpipe, 5in exhaust, Isspro Gauges, MORE TO COME
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post #6 of 12 (permalink) Old 08-02-2011, 03:21 PM
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Re: Realistic OBS fuel milage

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Originally Posted by diesel_brad View Post
I have a 97(cali) CCSb w 4:10s 5spd and RSKw SD springs and 315s. Has a DP tuner, 3" DP & 4" exhaust, napa 6637 What is the most realistic MPG that i should be seeing? I am getting about 13/15 city/hwy. Hwy is cruise set on 65
Seems a bit low to me.

I'm getting 14 mpg out of my 97 F350 E4OD 4x4 4.10 6" lift w/ 38's 6637 4" exhaust and a Banks 80hp chip (and ya the mileage has been adjusted for the tire size/gearing). 100% city.

My 97 F250 stock (3.55) 265/75/16's is getting 16.5 mpg 75% city.
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post #7 of 12 (permalink) Old 08-02-2011, 06:13 PM
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Re: Realistic OBS fuel milage

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Originally Posted by LiftedREDStroker View Post
I'll take one of those!!! I get roughly 13MPG, but I am running 350's on a stock truck I am in the hunt for some stock rims and tires.
I ment 315's

Jake Brown
1995 Ford F-350 4x4 CCLB, ZF5, Solid mass Flywheel, Banks Technicooler, DYI 6637, 3in downpipe, 5in exhaust, Isspro Gauges, MORE TO COME
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post #8 of 12 (permalink) Old 08-02-2011, 06:57 PM
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Re: Realistic OBS fuel milage

I'm gettin 115 miles per tank but my fuel supply pump is PISSING from the weep hole.

RIP Zack Freeman & Dustin Malson 8-14-10 California 200
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post #9 of 12 (permalink) Old 08-02-2011, 10:36 PM
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Re: Realistic OBS fuel milage

Fix the pump, dude.

2000 F-350 SC 4x2 6 speed
3.08 gears Gear Vendor Overdrive
Slammed 4"
Rugged Air Dam
315,000 miles
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post #10 of 12 (permalink) Old 08-02-2011, 10:46 PM
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Re: Realistic OBS fuel milage

I will once I'm over this ruptured legiment in my right ankle asap. Lol

RIP Zack Freeman & Dustin Malson 8-14-10 California 200
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