I need of Help

[Brfootball45]

I have a 95 powerstroke dually 4x4 with edge chip, cold air intake, and 4"TB exhaust. Im getting frustrated with it cause the mpg are terrible lately on my rear tank Ive been getting 100 miles out of a half of tank. and 80 miles out of a quarter it seems like the truck just drinks down the fuel whenever it wants. I drive no faster than 60mph. I have 4:10's. Its killing me , and also 2 weeks ago I did a oil change and checked the oil sunday and it was at the add mark . I have no leaks so i dont know where the oil went. I drive everyday. Also at idle when in the cab it feels a little choppy but outside sounds fine... any help would be great cause this truck is killing me I may need to get rid of it. I also just unplugged EBPV

[Fordman247365]

Did you actually check the mileage for what it is getting? Going by the gauge tells nothing, mine will run for 150+ miles after it hits E

[Brfootball45]

ya it has been like this for a couple of tanks now its aggravating

[Fordman247365]

Going by the gauge in minewith 100 miles at half it is around 18 mpg. How many miles were you getting before?

[Brfootball45]

I was at least getting 140-150

[Brfootball45]

Is your rear tank 16 gallons

[Fordman247365]

Yes it is.

[Brfootball45]

how you calculating that if you do 100/8 its around 12.5.... maybe Im calculation wrong... when Im at 3/4 and fill it , it takes 4.8 gallons

[Fordman247365]

LOL you cant calculate fuel mileage by the gauge. Miles driven divided by gallons used

[Brfootball45]

and thats what I did, Ive gone 102 miles now, how many gallons you say for a half cause a quarter was 4.8 gallons