Is there something wrong with my truck as the fuel miles suck. Sometimes it will do good, 15-17 MPG but other than that it only ever does 9 1/2 to 10 1/2 every time ( I don't lead foot it). There is nothing wrong with it that I can find. If it never made better mpg I wouldn,t care but since it can do it sometimes, why won't it do it more often.
Any ideas. Thanks

 

Yea these trucks dont get good mileage at all... 15-17 mpg is near the top of the range.. 10-13 is the average.

 

Around 10MPG (US gallons) is perfectly normal if you're doing short trip/city driving -- if it's Imperial gallons, though, it'd be 8.3 miles per US gallon and remarkably poor. I get about ten per US gallon if I don't leave my small mountain town that's all of a mile across at its widest point and all hills. When I get on the highway and down off of the mountain onto the flats, I get about 16MPG at 65MPH and just shy of 15MPG at 75-80MPH. Those numbers drop precipitously if I'm facing head winds.

Have you noticed a correlation between speed, load, terrain, and weather with your fluctuating mileage? If so, there's nothing to worry about in those numbers except that if they're in Imperial gallons that low number is remarkably low. But it might be accounted for depending upon the conditions when you're seeing it. Care to elaborate on that a bit?

 

Its 10 MPG (Us gallon) or 11 1/2 - 12 1/2 imperial. On two trips on two different times (200 mile round trip) at 70 MPH it made 20 1/2 MPG imperial and the next time 16 1/2. One time at 75 it made (18 3/4 imp).The weather was much the same both times and doing the same job, collecting my sisters things from college. There was not much wind out on either day. I have never been able to find a reason why it makes better or worse milage. A month ago it made 5 8/10 MPG imp for no reason- not the first time but thankfully it does not do that too often.
Most of my driving is back road which I know is going to hurt the mpg( I only use it when I need it or for highway driving) but even when I am doing highway driving it does not change. Even when I haul a trailer the mpg drop is not really noticable ( might loose 1 mpg).

 

Many things can affect MPG, ambient air temp, barometric pressure, moisture, tire pressure, altitude, gas type, when the gas was purchased, vehicle load. As we all drive our trucks we seem to do it in the exact same fashion, and always have different MPG outcomes due to one or more unseen differences in the stated. Just like the way my truck feels while driving it, one day it feels very loose the next day it feels perfect.

 

definitely depends on how you drive and what the conditions are. i average 13.5-15 depending on how i drive. you can always compare to others who posted in the mpg thread.

 

How old are your oxygen sensors?

 

10-13 is the magic number. I have never gotten above 13mpg, but I've had way less

 

^Same here. I've hit about 13.8 corrected for tire size.
And that is usually driving 10 under the speed limit.

I average about 9 since I have a lead foot and do a lot of running in town.

 

OK, We already have a gas mileage thread, plus countless threads about wanting to increase mileage....unless someone can give the op anymore advise on how to improve it, I suggest we close this thread.

https://dodgeforum.com/forum/2nd-gen...hat-to-do.html