Year: 94, Make: Toyota, Model: pickup 4wd

So it's about time to get some new tires and I am trying to figure out what size will give me the best gas mileage. I've got my choices narrowed down to BFG All-Terrain T/A's or Michelin LTX M/S's.

Currently I have 31x10.5 LTX M/S's. My gas mileage is approx. 14 city/19 hwy.
Do I go with
LT235/75R15? or 31x10.5R15?

10/26/2008 9:16:18 PM

BFG's are garbage, Stick with the Michelins. As far a sizes/mileage goes, stick with whatever stock was. My OEM Trooper tire was 235/75/15 and when I went to a 30x9.5x15 and lost 3-4 MPG.

10/26/2008 9:31:45 PM

Keep what you have.

10/26/2008 10:35:33 PM

10/26/2008 10:52:10 PM

Stock is either 225 or 31's. 225 definitely looks too disproportionate IMO.

10/26/2008 11:39:45 PM

I had the Mich LTX M/S on my 2000 Tundra in P265/70R16.

I replaced those with BFG All Terrain TA KO in LT265/75/R16, load range D.

Gas milage dropped 1 mpg on the highway and 2-3 mpg city after accounting for the circumfrence difference.

They were noticably stiffer of course since they were a LT instead of a P.
Wet grip, light mud, wet grass traction was a shitload better, but I got the truck when the LTXs probably had 40k miles on them and only had the BFG for about 10-12k miles.
I read on the net that wet traction on the BFGs goes downhill fast after they wear out half of the tread.

Stick with the LTX unless you need the offroad traction, expect to haul some heavy stuff, or just want an agressive looking tire.

10/27/2008 1:00:32 AM

you can always re-gear

10/27/2008 7:50:36 AM

^heh.


to the OP, pizza cutters are the way to go for gass mileage.

10/27/2008 8:07:36 AM

there are several factors that affect mileage, ideally, the taller the tire, the lower rolling resistance, but most larger diameter tires are wider, so it negates that, also you need to gear to properly match the tire size, and the taller the vehicle is, the less aerodynamic it is, so you have one thing going for you, and three against you

i would reccomend however, for allterrains, either dunlop radial rovers or bridestone duelers, both very long wearing, quiet tires with good grip, you should be able to get 60-80k miles on them, at least three times as much as a soft, shitty wearing bfg

10/27/2008 8:34:23 AM