How they got the 22.9 MPG

[PeteStrauss]

Hey everyone! This isn’t my personal experience, but someone shared their trip in a 2024 Wagoneer L, covering 1990.2 miles. The car’s display showed 17.7 MPG, but when they calculated it manually, it came out to 22.9 MPG, which was a nice surprise. About 525 miles were at 80+ mph on the freeway, and the rest at 55-65 mph. I’m sharing this here to see if anyone can explain how they got the 22.9 MPG.

 

[Silver.Surfer]

I've been tracking my mileage, and the numbers on my Wagoneer with the Hurricane engine don't match what I'm actually getting. Seems like the Hemi models are fine though.

 

[surrendertothis]

That’s a huge gap! I wonder if it’s an error in how the system calculates fuel used versus actual fill-ups. Maybe the trip computer resets in some funky way or just isn’t great at handling real-world driving quirks. Either way, I’d take the 22.9 MPG as a win!