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Old Aug 22, 2006 | 10:06 PM
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skrinar70
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Gas mileage

Just wondering what kind of fuel mileage you guys are getting to see how far off mine is

I have a 96 f150 4x4 302 automatic 3.55s no lift on 32x11.50 15s and get between 9.5 and 11 on the freeway and about 8 in town....

I have put on a K&N and cat back duals which made no difference,
 

Last edited by skrinar70; Aug 22, 2006 at 10:12 PM.
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Old Aug 22, 2006 | 10:30 PM
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I get about the same, the last time I checked. 95 f-150 4x4 351
 
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Old Aug 23, 2006 | 06:18 AM
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Dang. Did you reprogram your speedo for those tires? My '90 got 14ish in town and up to 17 on the highway, but that was bone stock.

Jason
 
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Old Aug 23, 2006 | 08:04 AM
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Wow!! that's bad. I get 12-14 combined and as high as 18-20 strictly highway... cruise locked at 70mph. Frankly I don't know how you could possibly get that bad milage with a 302 unless your foot is burried in the floor mat all the time.
 
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Old Aug 23, 2006 | 08:41 AM
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Originally Posted by skrinar70
Just wondering what kind of fuel mileage you guys are getting to see how far off mine is

I have a 96 f150 4x4 302 automatic 3.55s no lift on 32x11.50 15s and get between 9.5 and 11 on the freeway and about 8 in town....

I have put on a K&N and cat back duals which made no difference,
'97 F-250 4x4 351 automatic 4.11 no lift stock tires. 13.5 mpg, summer or winter, loaded or unloaded, combined city and highway (OK that's a bit of an exaggeration... it drops a touch in winter and it drops a touch more with a load). Pure highway might touch 15 mpg.

Your mileage $uck$. Driving habits can make a huge difference. Rolling around those 11.5's isn't helping. 4 wheeling a lot?
 
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Old Aug 23, 2006 | 10:12 AM
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I drive on the highway with the cruise set at 70-72, I wheel it now and then, and the speedo is dead on according to the radar stands that the cops set up, it has been this way since I got it..... and when I got it it had 30x9.50s on it and the 32x11.50s didnt change it at all, what else can I do to get it a little better??
 
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Old Aug 23, 2006 | 10:28 AM
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It's got to be running rich then. Pull the codes.
 
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Old Aug 23, 2006 | 11:55 AM
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Originally Posted by skrinar70
I drive on the highway with the cruise set at 70-72, I wheel it now and then, and the speedo is dead on according to the radar stands that the cops set up, it has been this way since I got it..... and when I got it it had 30x9.50s on it and the 32x11.50s didnt change it at all, what else can I do to get it a little better??
Again, did you REPROGRAM your speedo? If you didn't, then your speedo and odometer are wrong from the switch in tire sizes. Period. The speedo/odo in your truck runs off the VSS/tone ring in the rear axle/differential, and all it does is count revolutions. The speedo has a correction in it for the overall circumference of the tire then, which has to change if you go to a taller tire.

Jason
 
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Old Aug 23, 2006 | 02:29 PM
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1995 F150 4x4 S.Cab 5.0L auto 3.31------------11.5 mpg towing 4000-5000 lbs., 12 mpg empty trailer, less than 10 with an egg under my foot watching the vacuum/mileage gauge! By next week the new owner will be enjoying the gas bill! I'm looking for a 97-03 mod motored truck so I can afford to drive again.
I borrowed uncles '03 4x2 reg cab 4.6L and towed the same trailer 100+ miles, empty going and a 1000 lb utility body coming back, and kept my foot in it ... ... plenty of power and over 20 mpg!!
As much as I like my '95 I can't deal with that mileage!
 
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Old Aug 23, 2006 | 05:54 PM
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When was the last time you replaced the O2 sensor? A bad one will kill your mileage. My 92 4x4 with I6 was getting 10 and then I put in an O2 sensor and then sold it before I could burn up a tank. I also have another identical truck but it's 2wd and it gets 16-17 in town.
 
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Old Aug 23, 2006 | 05:55 PM
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i got a 1994 F150 302 4x2 with 4 inch lift and 32x11.50x15 tires and git 13 and 16 mpg i dont see how u git that bad one of my friends have a 96 f150 that we put a 460 in and 6 inch lift with 33 inch tires and it gits 9 and 10 miles to the gallon
 
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Old Aug 23, 2006 | 06:00 PM
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What's the most anyone's gotten out of a 351W?
 
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Old Aug 23, 2006 | 08:32 PM
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I have a 91 F150 5.0liter 4x4, 32x12.5x15 and get 14 pretty steady. I have my driving split between highway and city.
 
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Old Aug 23, 2006 | 09:05 PM
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i get about 10 in my 87 f-150 302. im running headers and flowmaster exhaust. i also put a k&n air filter on it. im runnin 33s stock
 
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Old Aug 24, 2006 | 10:43 PM
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i thought my mileage was bad. 95 f-250 460 auto with 4.10 LS rear, gets around 11 mpg and i've been able to get 14 mpg mostly highway one time.
 
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