Im planning on putting some 33X10.50's on my stock tacoma wheels and have a question. If i up my tire size will my gas mileage drop a lot or will my odometer just not gauge the mileage right. currently i get about 265 miles to a full tank(2.7L), which isnt bad in my opinion. when i had my 4runner i went from 245's to 31X10.50s and noticed a change in the mileage i was used to getting, but i felt a lot of the change was due to the odometer registering different. Would like some input. thanks all.

 

Yes, it will drop. how much is hard to say. Your speedo/odo will also be off. I run 33/12.5-15s on my 4runner and I get approx 15mpg, FWIW.

 

I switchd from 31x10.50 to 33x10.50 and lost 1.2-2.5 MPG. My spedometer is off by about 4 MPH at 75 MPH, but almost dead on at low speeds according to GPS. Your odometer will not be far off at all.

You will notice a power loss, and 5th gear will get used a lot less, but that look and the ground clearance make it worth it IMO.

Lamm

 

so 33x10.5 is a good size? i wanted to stick with my stock wheels as well...

 

i like my 33x10.5s. I didn't notice much gas mileage difference at all really. What I did notice though was power loss - especially on hills.

 

Running a taller tire is the same thing as changing the gears in your axle to a numerically lower ratio.

Yall can plug your gears and tire sizes into thos nifty calc-program to see what is up when you swap in taller tires.

www.f-body.org/gears

 

Not to mention weight.

A rough approximation to use, rule of thumb, is that for every 7-8lbs of rotating weight you add to your driveline, it require 5_crank_hp to spin it.