Fuel Economy Improved After 500 Miles

[Clauss3020]

After 500 Miles of driving my brand-new 2024 Ford Ranger, the fuel economy improved from just over 400 Miles to E to 524 Miles to E on a full tank of fuel. She performs better now after a short break-in period. I am using Regular 87 Octane Gasoline from ExxonMobil.

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[Phlfwd22]

Dang, 2wd I’m guessing?
I was getting about 300 to the tank on my RR, with the tonneau and about 600 miles broken in I’m averaging about 19mpg about about 360-370 per tank

 

[Clauss3020]

Dang, 2wd I’m guessing?
I was getting about 300 to the tank on my RR, with the tonneau and about 600 miles broken in I’m averaging about 19mpg about about 360-370 per tank

My 2024 Ford Ranger is a 4X4, but the fuel economy at 524 Miles to E was in 2H Drive mode without locking the rear differential. My truck has a soft roll tonneau cover.

 

[Hootbro]

Are you actually hand calculating it at fuel up or just trusting what the "Lie-O-Meter" says on the cluster for DTE?

 

[Gary]

Are you actually hand calculating it at fuel up or just trusting what the "Lie-O-Meter" says on the cluster for DTE?

LOL calculating yourself is the only way to get "honest" gas mileage figure. I know you know how but for those that don't. Write down your current mileage and fill the tank. At next fill-up, subtract the mileage you wrote down from the now current mileage. Now divide this number of miles driven by the amount of gas you just filled up with. The answer is what your gas mileage was for that tank you just burned. Example - you drove 498 miles and just filled up with 18.7 gallons. Your mileage was 26.6.

 

[johndeerefarmer]

Figment of your imagination. The engines are all ready broke in at the factory. If they weren't they would come with conventional oil from the factory. I have had over a dozen new Fords and none got any better fuel economy with age.
If anything, when you first got the vehicle you liked to hot rod it, now the new has wore off and you drive it normal

 

[FloppyKnockers]

Figment of your imagination. The engines are all ready broke in at the factory. If they weren't they would come with conventional oil from the factory. I have had over a dozen new Fords and none got any better fuel economy with age.
If anything, when you first got the vehicle you liked to hot rod it, now the new has wore off and you drive it normal

I just can't agree with this logic. A new car is a collection of new parts. Any new part you put into an older car has a break in period for two mating surfaces to marry. Granted, the break-in period is not as exhaustive as it was back when, as machining tolerances are tighter, but still, new engines need to be broken in.

 

[johndeerefarmer]

As I said I believe the engines are broken in at the factory. That and the fact that parts have such close tolerances these days they don't have to "wear"

 

[fordtrks4ever]

The transmission has a learning curve.
The program learns your driving habits.

 

[SubaruRaptor]

Are you actually hand calculating it at fuel up or just trusting what the "Lie-O-Meter" says on the cluster for DTE?

How is it a lie o meter?

 

[Hootbro]

How is it a lie o meter?

It is a tongue in cheek colloquial term as many times they are not precisely accurate and can be off more than 1-2 MPG's.

 

[FloppyKnockers]

It is a tongue in cheek colloquial term as many times they are not precisely accurate and can be off more than 1-2 MPG's.

^^ This. My F150 was dead on balls accurate when it was new. It slowly lost pace and by 80k miles-ish. It was off by ~2 MPG and a few "gallons used".

 

[Blowndodge]

You are correct that your mileage is getting better. Not dramatically but it will. the so called, "don't need no stinking break in" only pertains to the piston, rings and cylinder walls as manufacturing processes and materials have vastly changed over the years.

Crank bearings, cams, piston pins still take time to seat and mesh. Temperature swings in the engine play a vital role in how this happens. Temperature swings are more variable on a new engine. New engines run hot.

 

[Muffin1]

It is a tongue in cheek colloquial term as many times they are not precisely accurate and can be off more than 1-2 MPG's.

On my most recent fill up the cluster showed 24.3 and hand calculated @ 22.8 so that's a 1.5 less on the cluster, on the 5th Gen there was a way to go in the menu and adjust the values,
not remembering right now how to do it will have to go back over to 5thGen forum and look it up,
I did dial in my '19 Ranger to within a couple of tenths.

 

[Ryanosaurus]

On my most recent fill up the cluster showed 24.3 and hand calculated @ 22.8 so that's a 1.5 less on the cluster, on the 5th Gen there was a way to go in the menu and adjust the values,
not remembering right now how to do it will have to go back over to 5thGen forum and look it up,
I did dial in my '19 Ranger to within a couple of tenths.

So I confirmed the same trick engineering test (ET) menu is accessible on my 6G Ranger XLT. The only difference is that you need to hold down the OK button on the right side of the steering wheel then press OK to get past the default seatbelt status screen. NOTE the images below are from my XLT, so if you have a Lariat or Raptor it may look a little different.

From ET main screen, scroll up one click on the ET menu to get to the AFE screen.

Then follow the instructions posted by RCMUSTANG on the 5G Ranger Forum to enter your hand-calculated MPG modifier. See link below:

https://www.ranger5g.com/forum/threads/fuel-calculator-adjustment.2996/

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