how much does tire size affect mpg's??

[xdannyschuetzx]

hi first post here,recently got an 02 sport edition. im thinking about running bfg at 285's and was curious if anyone could tell me what kind of mpg's they were getting?? im running a 3" ome lift also,not sure how much that matters :fish2:

 

[hwyix]

A lot. It might only be 1 - 3 mpg to you but your truck probably only gets 20 mpg you are talking about 10% difference.

The best mpg tire is low rolling resistance; small contact; lite weight ( road bike 50psi or prius tire ). 285 is the opposite of that.

 

[Brian757]

Well OP, there are variables to keep in mind:

1) Like which rims you also go with, or if you keep factory. (Steelies are obviously heavier.)

2) Tread level/design. The more aggressive the tread, the more gas it'll take to keep 'em spinning.

3) Brand. Mickey Thompson MTZs are, in my book, much lighter than Nitto Mud Grapplers. And weight has significant impact on MPGs.

So with these variables in mind, you can hurt your MPGs mildly, or blow through tanks left in right. It's all about the homework. Keep your weight and resistance down, and your MPGs will not get the brunt of it.

 

[xdannyschuetzx]

how do you feel about bfg all terrains? they seem to have a low resistance. i do more city driving than anything because shes my dd

 

[blueblur1984]

I was asking around about this too and here's the general consensus:

-Meatier the tires the more you pay per mile. Don't go with anything beefier than a duratrac...I'm considering those are the general grabber AT2.

-The wider/taller the tires the more power you need to get to get them rolling. Starting and stopping are where you blow most of your mpg's. Someone was telling me the width has more impact than height, but I can't say for certain...

-As mentioned already the weight of each wheel/tire has a big effect. Try to balance strong with light where possible. Really think to yourself how much wheeling are you doing. Is it worth have a set of off road wheels/tires and a set for daily use?

-A lot of mpg is personal driving habits. A buddy of mine is big into this forum...there's some good tips on here.

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