35s and 3.73: What's Your MPG?

[Johnny Rebel]

Have you taken it off road? Any issues with steering? Nice bronco!

Thanks! We’ve taken it to Colorado a few times for some mild off-roading, but nothing too gnarly yet. Got a couple of trips planned this summer and hope to test it out more.

No problems whatsoever with steering. Did buy a tie rod kit from @trickydick as cheap insurance (nice kit!), but hope I don’t ever need it.

Since OP was interested in mileage, I’ll add that we got significantly better mileage in the mountains where speeds are much slower. Somewhere between 17-19 on the pavement. Don’t really remember what it was on the trails, though.

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[Beach Bronco]

2.3 auto with 35 NITTOs and 3.5" lift... 18.8 MPG.

 

[IINCEPTIONII]

2.3 auto with 35 NITTOs and 3.5" lift... 18.8 MPG.

Not bad at all! Do you use sport mode to keep it out of 9th/10th?

 

[4Fords]

I have a base with 3.73 gears 2.3 auto

I get 16-17 mpg, honestly not too bad. Definitely lost some throttle but I am pretty happy with the end results. Tried to get a light setup to not stress the transmission too much. Think it worked out well so far.
You will need to remove the crash bars. If your looking to get to 35s I’d definitely recommend light tires or even the sas take off tires.

Purchased Toyo open country AT III
35x12.5xr17 load range C (weighs 59 pounds)
Icon rebound pros rims (29 pounds)

What offset are those rims? No lift at all? Looks great!

I have a base with 3.73 gears 2.3 auto

I get 16-17 mpg, honestly not too bad. Definitely lost some throttle but I am pretty happy with the end results. Tried to get a light setup to not stress the transmission too much. Think it worked out well so far.
You will need to remove the crash bars. If your looking to get to 35s I’d definitely recommend light tires or even the sas take off tires.

Purchased Toyo open country AT III
35x12.5xr17 load range C (weighs 59 pounds)
Icon rebound pros rims (29 pounds)

What is your wheel offset? Any lift or leveling? Looks great!

 

[jayson]

Good thread. I have a 4dr SAS 2.7 OEM. I was confused when I heard how these Broncos get excellent gas since I am around 15-16, and that's not sport mode. Also I found eco gets maybe 1-2mpg more but that's with a light foot and not highway. I love the power but def not best for gas savings. But I also didn't buy this for gas savings.

 

[sgraing1]

That gear ratio and size tires combined = Dog.

 

[Geronimo]

Make sure everyone who gives you an answer has corrected their speedo. Not accurate if not.

My GF's 2-Door said it was averaging 16.3 before correcting the speedo. Corrected, it reads 17.6 avg. 35x12.50 on 17's but with the 4.27 axle ratio

How did you correct the speedometer?

 

[refade1]

What offset are those rims? No lift at all? Looks great!

What is your wheel offset? Any lift or leveling? Looks great!

I have the eibach full coilover with icon UCA
+25 offset on the Icon rebound pro rims!

 

[Beach Bronco]

Not bad at all! Do you use sport mode to keep it out of 9th/10th?

This WAS NOT in Sport Mode... just normal. For those that care... the 2.3 has plenty of power with 35's!

 

[Spooled]

How did you correct the speedometer?

Forscan

 

[Jsullivan]

2 Dr Base, 2.7, axle back dual exhaust, KN air intake, 285 70R17's.
Since new, 11,000 miles average 22.3 mpg.
My driving is almost exclusively highway.
Just took a 350 mile trip, mostly interstate, at 70 mph average speed and was getting 22.6.
If I keep it at 60 I get just over 23 mpg.
This is vehicle computer numbers, I only did a manual check once it it was within .3 mpg of the computer.

 

[Atoledo95]

2DR Outerbanks 2.3L Non-Sas, 35x12.50r17 BFG k02 with 3.73. 19mpg with Radflo 2.5 coilovers and Ford Performance Tune
Saving up for the Dana 44 and 60 axles to gear to 4.88s and run 37s NITTO Trail Grapplers

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