MPG with 35 inch tires

[Andrew Austin]

Just curious if any of you guys noticed much difference in MPG when switching to 35” tires from the stock 33s. Thanks.

 

[thkbaron]

Question is what does it get with 33’s. Haha. I get around 12 to 14 with 35’s on my 22. I’ve never ran 33s but I’m guessing there’s not a ton of difference.

 

[olyelr]

Nope. No difference for me. Sucked gas with the stock tires, and still does with the 35’s lol

 

[retired]

I have a 2020 and have run two sets of tires ie stock and 35" toyos. Done the same routes and always within a 1mpg so no real difference for me.

 

[Grand Mesa]

The stock 33s were a 2 ply sidewall load range D tire weighing in at 54 lbs. My 35's are Toyo C/T's 3 ply sidewall load range E weighing in at 77 lbs.

Toyo versus Duratracs...Twice the tread life, don't sway under load, and no more flat tires.

Gas mileage? I drive too much high altitude mountainous terrain to tell any difference. It either up or down for 250 to 350 miles with very little flat terrain.

 

[Socalramfan]

Not sure if it was the lift, the larger tires (35’s), or the combination of them as both we’re done at same time….. but Yes, mpg did drop, but smiles per miles went up big time

 

[CheechDogg.0n37s]

I have a 1500 with 37s and I get 14-15 in town and up to 17-18 highway .... I did regear to 4.88s and when I still had the 3.21s I was getting as low as 11 and 10 mpg in town lol .... that was one reason I regeared ...

But yes, you will notice a difference for sure ....

 

[Justin33]

I have a 1500 with 37s and I get 14-15 in town and up to 17-18 highway .... I did regear to 4.88s and when I still had the 3.21s I was getting as low as 11 and 10 mpg in town lol .... that was one reason I regeared ...

But yes, you will notice a difference for sure ....

Why do I feel that’s what I have with my 275 65 20’s I get about 7 to ten.

 

[SeppW]

If it's up/down, it's marginal. A lot of rolling/rotating mass, lousy MPG to start with. I'm running 35' Toyo C/Ts.

 

[Whiskey13]

Running Mickey Thompson 35X12.5X17 Baja Boss MTs, had lousy MPG with original tires and still have lousy MPG but no real noticeable difference. This is my third PW, they are not known for their great gas mileage

 

[retired]

Notice the guys with the same drivetrain as the OP ie 2019 on up power wagons have the same experience ie no real difference..

 

[ZookaTx]

2019 PW, just went from original 33" Duratraks to 35" Toyo Open Country AT IIIs, E rated (very hard to find). (Duras were not safe for winter up here though they had some tread left after 37,000 miles with a lot of towing.) I have not adjusted the computer for different tire size but nearby fairly flat stretch where I used to get 19 now shows 15 - 16. About 15% different. tiresize.com says the Duratrak is 634 revolutions per mile and the ATIII is 602 revolutions per mile, that is 32revs/mile different or about 5%. Toyos weigh 72 lbs, Dura weighs 60 lbs.
The difference in driving is massive.
The Toyos track so straight I can take my hands off the wheel for a mile at a time on the straights. Duratracks always seemed to wander.
Running 55 psi in back unloaded is too high, when I pull into a dusty place the rear tires get dust onthe middle section of tread, the last inch or so on the outside and inside does not get dusty. 45 psi in front unloaded seems right, probably need same in back until loaded.
The snow performance of the AT IIIs is at least equal to the Duras, if not better. I live where the pavement is white for at least 3 months a year for the first few miles towards town, so that is very important. I have some BFG ATs on an FJ Trail Teams and some 32" Duratraks on an 04 Grand Cherokee Limited with the auto lockers, the truck is by far better at braking, turning and accelerating in snow or ice than those 2. Better braking, and cornering in the snow and ice.

 

[retired]

2019 PW, just went from original 33" Duratraks to 35" Toyo Open Country AT IIIs, E rated (very hard to find). (Duras were not safe for winter up here though they had some tread left after 37,000 miles with a lot of towing.) I have not adjusted the computer for different tire size but nearby fairly flat stretch where I used to get 19 now shows 15 - 16. About 15% different. tiresize.com says the Duratrak is 634 revolutions per mile and the ATIII is 602 revolutions per mile, that is 32revs/mile different or about 5%. Toyos weigh 72 lbs, Dura weighs 60 lbs.
The difference in driving is massive.
The Toyos track so straight I can take my hands off the wheel for a mile at a time on the straights. Duratracks always seemed to wander.
Running 55 psi in back unloaded is too high, when I pull into a dusty place the rear tires get dust onthe middle section of tread, the last inch or so on the outside and inside does not get dusty. 45 psi in front unloaded seems right, probably need same in back until loaded.
The snow performance of the AT IIIs is at least equal to the Duras, if not better. I live where the pavement is white for at least 3 months a year for the first few miles towards town, so that is very important. I have some BFG ATs on an FJ Trail Teams and some 32" Duratraks on an 04 Grand Cherokee Limited with the auto lockers, the truck is by far better at braking, turning and accelerating in snow or ice than those 2. Better braking, and cornering in the snow and ice.

believe it or not the oem duratracs weigh 53lbs per a fed ex scale. I run my Toyo E rated 35's at a much lower psi and perfect wear and much better ride. Toyo has an excellent guide for setting proper psi. weigh your truck and set the psi to the right level.

StackPath

 

[Chap]

I'm getting between 8.5 to 9 mpg on my 35's. lol. I have a Subaru WRX for when I have to drive far. haha,

 

[Chap]

When running that low of tire pressure, doesn't the TPMS sensor light come on all the time???

 

[thkbaron]

When running that low of tire pressure, doesn't the TPMS sensor light come on all the time???

Not if you change the perameters with a pro cal snap, tazer, or alpha obd.

 

[Grand Mesa]

Not if you change the perameters with a pro cal snap, tazer, or alpha obd.

Unfortunately, those parameters can be inaccurate at higher altitude due to the TPMS sensors are factory set and sealed at sea level. Can be some 4 to 6 PSI off versus a tire gauge due to the lower atmospheric pressure.

If I put 65 PSI in my rear tires in Leadville, Colorado (10,000 feet) checked by a tire pressure gauge it may not kick off the TPMS light on my Power Wagon since the TPMS sensor will measure it as several PSI less than 65 PSI.

 

[bigred2211]

I'm about to find out this weekend. Chucking the stock 33's for some 35 Grabbers.

 

[Fatbob Frank]

35x12.5" Kenda Klever RTs.
I typically average 15mpgs in the summer but this time of year I'm only getting 13.
( probably due to a generous use of remote start)

 

[jeffawats]

no powerwagon here TM 2500 Hemi 3.73 35" Grabber X3's going on next week on stock wheels