Abnormal Gas Mileage

[Wuddup [OP]]

I don't know how, but I've been getting 22-28 mpg on highway. I've got 34 in tires and steel rims.

Don't go to Hidden Falls Adventure Park.

[weavinfj]

Downhill, 60 mph tailwind, hooked to an RV! Dont complain....I get 12 mpg

Sent from my C771 using AutoGuide.Com Free App

[bulldog6]

Maybe someone is putting gas in your tank without you knowing.


I've actually known someone who did that to a guy as a practical joke. The guy kept on and on about how great his mileage was.

[Layonnn]

Are you using the dash tripometer? It and the speedometer are not correct when you change tire size. A larger diameter tire takes less rolls to go the same distance as a smaller diameter tire. You need to figure out the percentage that the speedometer is off using a GPS then correct the amount of miles driven using that percentage.

With how heavy those tires and wheels are and having a lift, i'd be surprised if you were getting more than 19mpg.

[hewster]

My ultra-gauge has me around 21 mpg cruisin on the highway at times, but my average trip is usually 15-18.

28... is crazy. I can get 56 sometimes... when coasting lol

[Shake_&_Bake]

bulldog6 previously said:

Maybe someone is putting gas in your tank without you knowing.


I've actually known someone who did that to a guy as a practical joke. The guy kept on and on about how great his mileage was.

It's been awhile since I've had a good practical joke played on me. Send that silly jokester my way. I'll be standing by!

My Ultra Gage has me at 18MPG

[thebus]

does a scanguage get accurate info even if you change tires? no re-calibrating etc

[hewster]

thebus previously said:

does a scanguage get accurate info even if you change tires? no re-calibrating etc

Pretty sure you have to calibrate it.

I could be wrong... would not be the first time.

[willinno]

Wow Wuddup! I didn't get 22 when mine was brand new and stock. (21 tops ever). Your not having a rack helps, but that's crazy.

[Brazen]

Layonnn previously said:

Are you using the dash tripometer? It and the speedometer are not correct when you change tire size. A larger diameter tire takes less rolls to go the same distance as a smaller diameter tire. You need to figure out the percentage that the speedometer is off using a GPS then correct the amount of miles driven using that percentage.

With how heavy those tires and wheels are and having a lift, i'd be surprised if you were getting more than 19mpg.

If he hasn't corrected for larger tires, that would mean his gas mileage is even higher