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MPG on Bronco with "37" tires

Az_Squatch_Bronco

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Reviving an old thread -

Wit the OEM Sasquatch Wheels and tires I was getting maybe slightly better than 16mpg -

Now with 37s and aftermarket wheels I lost maybe 1mpg - so 15 mpg in town. Seems thats the range with the 2.7 with 10 speed trans and 4.7 gears?

Has anyone seen better wit the Ford performance tune?

I am not not mad at 15 mpg, just looking for what the baseline is!

Ford Bronco MPG on Bronco with "37" tires 20230809_164852
 

Gtrekker

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I'm with the majority. MPGs is 16-ish, running 37" K02s with no lift. But, that's going to change this fall / winter.

Ford Bronco MPG on Bronco with "37" tires 20230812_161806
 

derichio02

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On my 2023 2DR Wildtrak. I get 13.5-14.5 on the dash with RPG 2.25 perch collar lift and RTR 17x9+0 wrapped in BFG 37's. I have a heavy foot and is hilly and has high speed limits in my area. Most speed limits in town are 50-60mph

Ford Bronco MPG on Bronco with "37" tires IMG_1221
 

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Fly2Win

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Was getting 20.4MPG on stock BD SASQ 2D running 89 ethanol free in 50/50 urban/highway driving. Went to 37” KM3’s and it dropped about 1MPG.

Ford Bronco MPG on Bronco with "37" tires IMG_5064
 

Ninjak

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I get around 13~to 16 depending on where I am driving, City or Highway. I have Cooper 37's on a 4 inch lift. I am also tuned and have a CAI.
 

brenormam

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Anyone have experience with same size (315/70/17) as oem just heavier??

id like to change to either KO2 or wild peaks from the Goodyears but it’s going to be a 10-15lb gain in rolling weight per tire.

anyone with any experience in the impact on MPG with this?
 

35tires

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at 35 psi stock sasquatch everything but full skids/bumper I get around 15 on premium toptier. On 37s I'd be in the low 13-12 mark. All city, some highway at 80mph. Roughly 9k miles at this point and about 250 lbs of steel added with full skids
 

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JT58Bronc

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Gearing makes the difference. Ford got it perfectly right with the Sas and my 2 door is netting 22.7 MPG average, driving with a very light foot. That's darn good with 35" tires. Mine is stock and will stay that way. 37" tires will affect the MPG a lot I would suspect.
 

Bird Dog Off Road

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I am stronly thinking about throwing 37 inch BFG KO2 tires on my Bronco once it comes in. It is a Sasquatch 2 door and gets 17 miles per gallon on Ford's website. I want to know the answer to this before I do it but what do you think a 2 inch lift with 37 inch tires would do to the MPG? I know it will be much lower but does anyone have a rough prediction of what I could be seeing if I added these options?

2021 Bronco 2 inch lift kit 37 inch tires.jpeg
I think most people see around 1-2 MPG drop.
 

brenormam

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I’m not upset at all with the power and MPg with the stock tires, I just hate that the nearest competitor weights a full 10lb more!!! (ko2)
 

SilverSurfer

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21 2.3/manual Badlands non-sasquatch w/ 3.5" lift & 37" KO2's.

18.7 mpg mixed city & hwy on my last 2 tanks. 18.1 over the last 5k miles.

20220714_163221 (2).jpg
Any issues with power from 2.3 with the heavier tires? And what suspension do you have?
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