MPG Drop?

Just curious:

Will i see a significant loss (over 1-2mpg) of gas mileage if I upgrade from my stock 16" steelies with the stock 245/xx/16 dunflops, to 17" FJ alloys and 265/70/17 Nitto terra grapplers?

Or do you suggest a different tire for my DD/weekend wheelin Taco that is a good compromise between off road performance and DD performance?

 

what size nittos? u go bigger than stock u will def. notice a peformance change on the 4 banger. witch inturn ide say yes on the 1 to 2 mpg loss.but if u match up the same size as stock on the fj wheels u should b the same.hope that helps ya.good luck.later

 

Well, I have an 06 Double Cab TRD (v-6) I went from a 265/65/17 to a 255/75/17 Mud Terrain and lost about 4 mpg. At least that is what I have figured up. I think I am going to go back to a size closer to the original.

 

shit i can't believe I didnt include that. I want 265/70/17 to replace the stock 245/xx/16

 

no problem dgerm,i put the 265 75 16s on with my lift( 1" taller than stock) and just did a 400 mile trip and got 22mpg.nothing over 70mph.not to bad in my book.

 

thanks for the info. I am now debating selling my 17" FJ wheels and keeping my 16" steelies or looking for a different set of 16" steelies because of MPG reasons. Or should i not worry if I am going to run 265s either way

 

keep the steels man

 

Its a lot harder decision now that I bought the FJ wheels lol

 

i know man, always thought that steel was more durable and easier touch up when needed

 

well the alloys are supposed to be stronger, but the steel you can pound back into shape. so i am at a crossroads. any offers on the FJ wheels to make my decision easier

 

Don't know how it will be with a 4 cyl, but I went from 245/65/16 dunlops on steel wheels and I was getting 18-19mpg, to Nitto 265/70/17 on MotoMetals and I got 17-18mpg with a V6.
I added a K&N filter and I'm about to hit 20k miles, I'm getting 18-19mpg again with the same driving.