265/70/17

I'm thinking about putting a set on my ORDC 4X4. Can someone tell me how much their gas mileage changed going with the taller tire?

 

Less than 1 MPG difference for me.

 

None.

G.

 

Just got my truck and that size was already on there. after each drive it tells me the average was 21 mpg.

 

It all depends on what load tire you go with. A standard load (SL) tire will have a negligible effect on your MPG. If you go load E, you'll take a larger MPG hit, maybe 2-3, since they're a lot heavier.

 

I've got load C's on my DCLB and the difference is negligible.

 

I dropped 2+ with my C load BFG tires. Went back to stock size and immediately saw the 2mpg come back.

 

I was going to go with BFG's, maybe I will have to rethink this.

 

Check out General grabber AT2, as they come in SL. Very similar tread pattern and pretty inexpensive.

 

If using the truck's built-in display or calculating with the odometer, multiply your mpg by 1.03 to account for the larger tire.

FYI with rounding, 19 mpg x 1.03 = 20 mpg, 20 mpg x 1.03 = 21 mpg. In all likelihood any mpg loss will be lost in the wash.

 

well are you going from a standard load h/t tire to a e load mud terrain or you staying in the boundaries of standard load tires.

 

I've seen guys say they lost as much as 2 to 3mpgs. I tend to believe this over those who claim they lost nothing or it is "negligible."

I think folks have a tough time being objective. Human nature is they want to see things they've invested their money and emotions into in a favorable light.

 

lifes too short to run lame ass tires and worry about mpgs

 

Yet one of the major marketing points for modern vehicles is fuel economy.

Personally I'd be less concerned with fuel economy than I would with worsening the behavior characteristics of this weak tranny and motor combo. I've run 3%, 5%, etc and larger tires on past trucks and there is a noticeable impact to shifting and driving performance on some of those. I think I ran 275s or 285s on my 1st gen manual trans and it rendered 4-hi virtually useless.

 

tacomas aren't really the poster child for fuel economical trucks in the first place.

 

This is why I said my loss was negligible. The computer says around 2mpg, but it doesn't know I changed the tire size. I've got KO2's and couldn't be happier with them.

 

Eh. Kind of a weak argument when one of the primary reasons for Toyota changing the engine was for efficiency purposes.

Nissan Frontiers are not known for Fuel Economy because they're running on a what ... 15 year old design?? Toyota wants to compete and stay up close with GM. When there are full sized trucks getting upwards of 18 to 20 MPG and the other more modern midsized trucks are netting 20+....you can bet Toyota wants to stay in the ballpark.

You can't say fuel economy doesn't matter in general, because it does. It may not matter to YOU but it matters to much of the general market.

 

im saying its sad when chevys 6.2 and dodges 5.7 gets better mpgs than a 1/4 ton with a van engine.

 

And this is why I went with 267/70r17 instead of waiting for my lift and getting 285's. Lots of people here have said going to 285 means you need to regear, and I don't feel like doing that is worth an extra 1.5" of tire.

 

Yes my experience has been at first those fat new tires look cool and you don't mind the change in driving performance. But over time the new wears off, the 15mpg gets old, the lack of power/degradation of performance starts to eat at you.

Here's the other thing we have to remember. Look at all of the folks putting 285s on their trucks. Is it really out of necessity? These trucks STOCK will go and do pretty much anything 98% of the drivers demand of them offroad. Does a 285 really give you that much more functionality? I'd contend that it's more about people wanting to stuff big meats on their truck for LOOKs to "customize" their truck. It ends up being more like a uniform...half of the Tacoma's I see are running around on 285s and most of them probably rarely see a dirt road.

Oh and for those with 285s that do offroad, you can follow right behind them with your 265/70/17s or 265/75/16s and be just fine in MOST cases.