dieselnewbie

Just filled up and calculated this past tank's mileage.

It's the first tank used after TSB 18-037-004 (the supposed fix for the mileage computer, etc.).

The overhead said I averaged 20.4 MPG when I filled it.

Hand calculated number was more like 17.35 MPG.

Not good.

Maybe that's how Dodge fixed the mileage problem!

DT.

Hannibal

My overhead reads about 1mpg low. If it says 17.6mpg when I fill up, I'll pretty consistantly calculate 18.6~.

Dodgezilla

Mine was dead on before I started BOMBing...
dieselnewbie, it may be off but it's still good mileage........

Larv

When hand calculating I usually get +1 mpg better than the overhead!

Larv

duner

my overhead indicates about 3mpg high. and by the way it's only an estimated value anyway.

bulabula

My overhead is pretty accurate too. Its usually 1mpg lower than my hand calculated figure.

RonP

Mine seems to indicate about 1mpg low without the edge box and about 2mpg high with the box on.

wexman

Before I had the TSB, my computer was within 0.2 of actual hand calculated. Now it reads about 1.5 high.

Actual mileage has only improved about 0.5-1 mpg over my normal driving conditions.

kingofdodge7131

Mine jumped drastically From around 14 to 18. tops of 19.2 but that 19.2 was very very nice driving. Mid 17s is usually where im at. Mileage comp did the same to me was within .2 now about 1 even too high on the overhead. Which is ok. Ill take the trade for the better mileage. But im kinda sad. there was an 02 i was lookin at one tme. it even had instant MPG read outs. It have the average we all have and then like right now you need to slow down your getting 6 mpg Kinda wish i had that. Because what im noticing is as i put more miles on it my overhead gets closer ( when i got reflashed it was close to 2 off. Now im down to one. )

So i like to keep track let the average run for a week and then go from there So if i had the instant it would make it easier to twich the driving to how hyou neededlk

Tom

My overhead computer calculates just about one mile to the gallon less than what I actually get. It has done this since it was brand new.

If I drive right and keep my foot out of it, it generally gets 20.03 on flat highways and no wind. A littlel driving around town will drop it to 18.4 or so very quick.

jeffy1951

my '01 with auto overhead read 1 mpg low, and 04.5 with a 6sp is also 1 low compaired to hand calc. Jeff

Jonbr

Mine was reading 10% high before the TSB, now it's very close. About .7 MPG high. My fuel mileage changed very little. It's doing about 19 MPG now with no load.

tdupuis

My overhead reads a consistant 1 mpg higher than calculated. My mileage is good, and getting better with time.

Jc9995

Im with Wexman. was VERY close before TSB, now I am 2mpg higher than hand and only gained about 0.5mpg actual.

ed paul

same as Jc9995