Tire size.
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Tire size.
Hi Folks,
My name is Ron (bionicduck) and I've been lurking here for a while. I'm sure this has been on here a bunch of times but I couldn't find my answer using the search tool so I'm gonna ask. My 2005 F150 has 255 70 17 tires, it looks stupid, can I put on a 255 75 without it rubbing? What are some suggestions for tire size. I don't want to do a leveling or lift and I will need new tires for inspection in 2 months, not to mention I just put a plug in one, stupid nails. Anyway, thanks for reading all of this and I appreciate any info I can get.
My name is Ron (bionicduck) and I've been lurking here for a while. I'm sure this has been on here a bunch of times but I couldn't find my answer using the search tool so I'm gonna ask. My 2005 F150 has 255 70 17 tires, it looks stupid, can I put on a 255 75 without it rubbing? What are some suggestions for tire size. I don't want to do a leveling or lift and I will need new tires for inspection in 2 months, not to mention I just put a plug in one, stupid nails. Anyway, thanks for reading all of this and I appreciate any info I can get.
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From: manchester,ct
I've got the same thing on my 07. I have a level kit now, but that was for looks.the tires fit fine before the kit
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I have 305/65/18s on my FX4 w/a 2" level but the gas mileage and ride quality have gone to ****. :-(
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My truck has 373's I was actually thinking I could get better mileage by going to a taller tire by brining rpm's down on the highway. You say you lost gas mileage by going to a bigger rubber. Why would that be ? This truck feels to me like it has way more than enough torque to pull a bit more gear.
Do you think my mileage would increase or decrease with taller tires ?
My truck is a two whel drive super crew with a 5.4 and the heavy duty four speed automatic that comes with the trailer package. I think it's a .67 overdrive.
Thoughts ...
Thanks,
Phil
Do you think my mileage would increase or decrease with taller tires ?
My truck is a two whel drive super crew with a 5.4 and the heavy duty four speed automatic that comes with the trailer package. I think it's a .67 overdrive.
Thoughts ...
Thanks,
Phil
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Bigger tires can kill mpgs as they are heavier than the stockers and are thus harder to get moving. Even on the highway, they can contribute to more rolling resistance if wider, and increased drag due to a larger, higher profile of the vehicle. No free lunch with wider tires.
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I lost roughly 4mpg at first, but then luckily gained back a solid 1mpg with my edge tuner..... What killed it was the combination of the taller/heavier tires and 2" level. Since the truck sits higher it is pushing more air out of the way at hwy speeds (the wider tires do the same) therefore using more energy (gas) to get from a to b. I got behind a dodge running 75mph, and while I was in his drag my instant mpg went from 13/14 to 19/20..... The poor aerodynamics of our bricks is what absolutely destroys fuel mileage. I have thought about removing my 2" level and going down to a 285 tire to help my mileage.
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Thanks for all of the info. The mileage/performance issue did cross my mind but this just assures me that I'll keep the stock tire size. The performance and gas mileage are already crap with this vehicle so I'll have to sacrifice the looks. Thanks again.
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Joined: Jul 2010
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From: Henrico, VA
I lost roughly 4mpg at first, but then luckily gained back a solid 1mpg with my edge tuner..... What killed it was the combination of the taller/heavier tires and 2" level. Since the truck sits higher it is pushing more air out of the way at hwy speeds (the wider tires do the same) therefore using more energy (gas) to get from a to b. I got behind a dodge running 75mph, and while I was in his drag my instant mpg went from 13/14 to 19/20..... The poor aerodynamics of our bricks is what absolutely destroys fuel mileage. I have thought about removing my 2" level and going down to a 285 tire to help my mileage.