Widder tires = less MPG?

[Blizzard96]

Just wondering because I went from 215/60/16s to 245/50/16s about a month ago and almost right away I was getting less miles per tank.

Or maybe I'm just driving faster...I don't know. [img]graemlins/burnout.gif[/img]

[nikon]

more friction on the road, try wearing bigger shoes and see how quickly you get tired compared to ones that were made for you ;)

[JAM]

You might go from like 20 to 19. Should be a huge differance. ;)

[AZ3.8Camaro]

I always get 20-21 MPG, no matter how I drive, if I use AC or not, different tires and wheels. Nothing changes it. Very strange.
Wider tires could also weigh more and therefor more work for your motor to get up to speed.

[Arctc Wolf]

245-50-16 tires have a smaller circumference than 215-60-16's, that's why ur getting a little less mpg, and the fact that it's got a bigger footprint on the road means more friction and drag.

[Akuma]

Wouldn't a smaller circumference tire give you better gas milage? If not then why do trucks with big tires get crappy gas milage?

[Arctc Wolf]

taller tires r usually heavier, unless they're narrow, like the 215-60's.

[AZ3.8Camaro]

A Smaller size tire is like a higher gear ratio. You will see probably more acceleration, and higher rpms. But your tires aren't much different in size anyhow. I bet you won't notice a thing. I don't know about the gas mileage.
Trucks with big tires get bad mileage because those tires weigh a *TON*. PLus those trucks usually have a 454 or something astonishing and pull a ton of weight anyway.
I don't think those tires would have caused that big of a difference in the gas mileage. Personally. [img]graemlins/thumbsup.gif[/img]

[ December 18, 2002: Message edited by: AZ3.8Camaro ]</p>

[phoenix64]

I notied a lot when I went from 235GA's to 225-60 avid sports. Milage didn't change like I was told it would. The strange thing I noticed, was that my speedo used to read wrong, and now it reads right. go figure. I wish I had gotten some wider tires though. Cornering sucks. The easy burnouts are almost worth it.

[ December 18, 2002: Message edited by: phoenix64 ]</p>

[whopassfbody]

I can not tell any difference in my mpg and my rims and tires are heavy as rocks. I drive like an old man most of the time anyways.

[TheV6Bird]

<blockquote>quote:</font><hr>Originally posted by AZ3.8Camaro:
I always get 20-21 MPG, no matter how I drive, if I use AC or not, different tires and wheels. Nothing changes it. Very strange.
Wider tires could also weigh more and therefor more work for your motor to get up to speed.<hr></blockquote>Ditto, except I usually get 17-18 MPG :(