gas mileage....
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Joined: Nov 2006
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gas mileage....
I know it is winter and trucks usually do worse with the hgas blends and such. But, my truck is getting 9 miles to the gallon, i have a 4.6 liter. it also has 35 inch tires. this is mostly highway mileage and i do a lot of that. any suggestions...? it also seems like i am doing repairs every other week, minor stuff but it adds up.
Postmaster
Joined: Nov 2006
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From: SE Wyoming
First of all is the odometer recalibrated for the larger tires? Second 9 doesn't sound to far off for that big of tire and a 4.6L, I assume it is a 4wd is it an auto as well? If it still has the stock gears it at least need 4.10's put in it to get back close to normal.
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I have a 99 F-150 4.6l Manual, and i run it occasionally with 33 inch mud tires, which is only 2 inches from stock. i ended up getting 11-13 miles/gallon, depending on how i was driving, or if i went four-wheeling a lot that tank, so that doesnt sound too bad for you with 35 inchers on it.
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Joined: Feb 2004
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From: Denver, CO
Originally Posted by galaxie641
First of all is the odometer recalibrated for the larger tires? Second 9 doesn't sound to far off for that big of tire and a 4.6L, I assume it is a 4wd is it an auto as well? If it still has the stock gears it at least need 4.10's put in it to get back close to normal.
Tuned
Joined: Oct 2003
Posts: 295
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From: Ringgold GA.
Should recalibrate your speedo and ABS etc... but wont fix the poor fuel mileage. As stated by galaxie64 you need bigger gears to turn the bigger tires more efficently. There will still be some loss over stock due to more rolling resistance and weight from those tires. Bottom line is these trucks are not fuel misers. That being said make it look good to suit your tastes and enjoy it, forget about counting miles per gallon....it's too depressing HA HA HA.
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From: Stanton DE
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Post Fiend
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From: Yorkton Sask
i don't think that there could be a general ESTIMATE for either. a person could be safe to say that you may get anywhere from 10 to 25 mpg with either engine, but it heavily depends on the configurations of the vehicle, and the driving style. Personally, i have had both ends of the scale with one truck. i've had 10mpg in the winter when its cold and i idle for quite a while. and on the highway in the summer on a calm day, 65mph, no wind, flatland, i've gotten 24mpg. my truck is an '02 s'crew, 4.6l, 2wd, 3.55ls diffy...
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Originally Posted by 96sherm
i don't think that there could be a general ESTIMATE for either. a person could be safe to say that you may get anywhere from 10 to 25 mpg with either engine
Senior User
Joined: Feb 2007
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From: Redvers SK. Canada
I have a 2001 F-150 4x4 with a 5.4L in it and I use it everyday for work in the oilfield. I drive around 200 - 300 kms. per day and fuel up every night. I have checked fuel mileage often. In the winter, right now, it gets about 11-14 mpg with lots of 110 kph driving on the highway. It is better in the summer about 16-18mpg average. On a trip to Winnipeg last summer it got 21mpg, best yet. These trucks are pigs on fuel in the winter and my next truck is a diesel.