Hey Everyone,
I'm new to this post and I got my first toyota (2000 4runner) a few months ago!!
I'm wanting to lift it and put some 285/75/16's on it, but I'm a little worried about too much power loss and bad gas mileage, since it's a daily driven vehicle.
So... I've been wondering what kind of gas mileage everyone is getting on the 3rd gen 4runners, running 285's, and is there any noticable power loss after regearing?? Also, what engine, gear ratio and tranmission type (manual, auto) do you have and what is your driving style??
Thanks everyone!!

Whew! Boy did I wear this one out in several posts a while back! Try looking at this post to see if you can glean the info you are looking for:

http://64.4.43.250/cgi-bin/linkrd?_...ire%2ecom%2fcgi%2dbin%2fultimatebb%2ecgi

I actually ended up with 265 Bridgestone Revos (32s) and my gas mileage dropped about 1 to 2 mpg, but... I was running 265 Michelin LT ATXs (it originally came with 260s) and they are considered to have a lower rolling resistance, so I was probably getting better mpg than I would have with another brand anyway. In a nut shell, with bigger tires you are going to lose some power and gas mileage. There's no getting around that, it just goes with the territory. If you don't mind the extra expense in order to have a cooler looking and better performing ride (off road), then I say go for it. If you're like me, though, you will regret it. I really like the way my truck looks now, but I'm rarely able to go off road these days and for on road driving it is a disadvantage. I like the way it rides, but it handles a little slower, turns less sharply, accelerates a little more slowly, and of course, the gas mileage stinks. It wasn't great to begin with, but now it makes my commuting more expensive and the way they are talking on the news about escalating gas prices, it's just going to get even more expensive. <img src="/forums/images/graemlins/frown.gif" alt="" /> It does look cool, though! <img src="/forums/images/graemlins/coolg.gif" alt="" />

Thanks for the reply, SteveD. What gears are you running with the 32's? Were they the same with the 31's?

For what its worth.... When you go to bigger diameter tires than stock, you are throwing the accuracy of your odometer out the window. You are actually traveling farther than your odometer says. You now travel a farther distance, per each tire rotation. Soooo, you are probably getting better gas milage than you think, if you are using your vehicles odometer to figure it out. Somebody smarter than I am could probably figure out the change in 1 mile reading, when you increase tire diameter by 1,2,3 inches.

I'm getting about 15mpg with 33/12.5-15s (1" wider than your 285s). Power is OK with stock 3.90 gearing.

Yes, stock gearing. I never ventured into that area so that may be an option for you to regain any lost power. And yes, your odometer does get thrown off, but with 265s it's pretty slight. Anyway, I KNEW I lost mileage. I could feel it in the wallett. I definitely put more gallons in the truck each week with the same amount of driving! Oh yeah, if that link to that other thread I recommneded didn't work, try this one:

http://www.4x4wire.com/forums/showf...426794&fpart=&PHPSESSID=

figuring your gas mileage/distance traveled from stock is about 9-10% more on your odometer with 285/75/16s. For example, if your odometer reads 200 miles when you go to fill up, figure your mileage at 220 miles. Stock tires are 9-10% smaller in circumference and that's how you figure it out.

I get about 280 miles out of a tank and then add about 16.5 gallons which comes out to about 16.9 miles/gallon. With the larger tires, the ACTUAL distance traveled is about 308 which is about 18.6 miles/gallon. (larger tires = further distance traveled. 29" tires (i think that is stock) compared to 33" tires in circumfrence is about 9-10% smaller.

Yes, you loose noticeable power but thatÆs a given. You can regear to get back to your ôstockö acceleration but that will cost a nice chunk of change.

-John

The best mileage i got out of my 4Runner with 285/75/16s was around 19.5mpg when I set my cruise at a painful 55mph and did not go over. Although I got much better gas mileage, it wasn't worth getting passed by everyone and taking an extra hour to get to where I was going.