Report your MPG

[Goodrx]

If you haven't calibrated your computer for the new tire size, the truck will hunt more for gears until you do. Once that's corrected you should see a significant improvement. I did going from the stock 30 to 32s.

Can I take it to Ford to calibrate?

Sponsored

 

[Gizmokid2005]

Can I take it to Ford to calibrate?

Maybe? The dealerships around here say that they can't calibrate it because Ford hasn't made that option available to them in their software. I tried two different ones and neither could. You may have better luck with it.

If not, it's very very easy to do with FORscan, which is how I corrected mine.

 

[AzScorpion]

Can I take it to Ford to calibrate?

If you get the Livernois tune you can do it through the MyCal tuner.

https://www.ranger5g.com/forum/threads/livernois-tuning-released.2036/post-140917

 

[tehschkott]

The Ford FPP ProCal tool will also do it.

https://www.ranger5g.com/forum/threads/ford-procal-will-adjust-speedometer-for-new-tire-sizes.9947

 

[Jeffsmith13]

1900 miles 4 door 4x4 87 octane, 25.2 mpg and getting better. Drove over 100 miles round trip half rural highway half off road in the Mark Twain National Forest. The more I drive it the more I like it. Factory rubber sucks though.

 

[TylerV76]

I did a bit of experimenting over the past 8 weeks and found that the only advantage premium fuel (93 octane) gave me was a more responsive engine. As far as MPG went, it made no difference at all.

4 weeks of 93 Octane:
Week 1 (lots of highway)

Week 2: Lots of highway

Week 3: Mix

Week 4: Mix

4 weeks of 87 Octane

Week 1: Mix

Week 2: Mix

Week 3: Mix

Week 4: Mix

 

[RapidRedRanger61]

Over the first 2000 miles with 6 refuels, the last 4 being 91 octane, first 2 being 87, I averaged 22.6 mpg, all on-board computer. Level kit on for two plus weeks, original tires. No appreciable difference in mpg. Replaced Hankook 265/65-17's with BFG KO2's 265/70-17's several days ago. Only 90+ miles on it since but running at 20.3 since new shoes. Tracking manually now since with new tires and having not reprogrammed, may not be showing accurate

 

[Gizmokid2005]

Over the first 2000 miles with 6 refuels, the last 4 being 91 octane, first 2 being 87, I averaged 22.6 mpg, all on-board computer. Level kit on for two plus weeks, original tires. No appreciable difference in mpg. Replaced Hankook 265/65-17's with BFG KO2's 265/70-17's several days ago. Only 90+ miles on it since but running at 20.3 since new shoes. Tracking manually now since with new tires and having not reprogrammed, may not be showing accurate

Just remember, if you didn't change anything, tracking manually isn't going to do anything for you either unless you're tracking actual miles traveled outside of the truck. An uncalibrated tire size affects odometer/trip and speedo.

 

[RapidRedRanger61]

Just remember, if you didn't change anything, tracking manually isn't going to do anything for you either unless you're tracking actual miles traveled outside of the truck. An uncalibrated tire size affects odometer/trip and speedo.

I guess I hadn't thought that through entirely. That makes sense. Oh well, guess it might be a bit longer before I know for sure. Thanks Gizmo.

 

[jsphlynch]

Stock XL 4x4 crew cab here, running exclusively 87 octane.

After about 6500 miles (most of it around town because...well...covid), most tanks are now coming in around 22-23 mpg, after my first couple tanks being ~19 mpg (hand-calc, though I've done the AFE adjustment and computer averages pretty close to hand calcs). I think it's starting to drop a little as the weather has cooled.

This past weekend I finally had my first trip in the pickup that was long enough to have tanks of almost exclusively highway driving, and I also had a tonneau cover on. Computer said I averaged 26.1 and 26.4 on those tanks (hand calcs said 25.4 and 27.0). On my old Ranger (2003 Reg Cab, 2.3L, RWD), those conditions would have gotten me around 29 mpg. I am thrilled that I can get so close to the same mileage with the dramatic improvement in capabilities.

 

[Gizmokid2005]

I guess I hadn't thought that through entirely. That makes sense. Oh well, guess it might be a bit longer before I know for sure. Thanks Gizmo.

Yup! That was one of the primary reasons I finally got a USB OBDII scanner and FORscan, since dealers are apparently unable to alter that config.

 

[RapidRedRanger61]

Yup! That was one of the primary reasons I finally got a USB OBDII scanner and FORscan, since dealers are apparently unable to alter that config.

I have the ProCal 4 calibration tool coming in early next week. It supposedly has the capability for "speedometer correction for gear/tire change (within factory parameters). We shall see.

 

[Gizmokid2005]

I have the ProCal 4 calibration tool coming in early next week. It supposedly has the capability for "speedometer correction for gear/tire change (within factory parameters). We shall see.

Yeah, any of the tuners should be able to handle it as well.

 

[HenryMac]

Still averaging better than 26 mpg in our FX4 Coupe here in the mountains of Central Colorado....

Filled up earlier this week and ran the numbers: 26.34 mpg

 

[Chattownranger]

I didn’t read through this whole 34 page thread but just wanted to share an app I’ve used on my phone for years called Fuelly. You can track all sorts of maintenance related services and the like and obviously fuel mileage. Here is a screenshot of my rangers info. It’s a fantastic app I picked up years ago in my VW tdi days.

Sponsored