I have an 01' 7.3 PSD and lately i have been getting only 13 mpg and less and now this last time i only got 11 mpg i was wondering what the problem may be i doubt that its the cold weather but latley its been in the negatives lately so any help would be greatly appreciated

 

Sorry wrong forum.......up a bit.

 

Not saying you don't have anything wrong but that isn't an uncommon mpg number on those years of motors.

 

powerstroke1896,
Welcome to FTE and the IDI diesel forum.
Moving your post to the 1999 thru 2003 7.3 Power Stroke forum.

 

First off, welcome to FTE. Check the simple things first. Tire pressures. Fuel additives. Oil quality. Cold weather and the switch to winter blend has caused my mileage to suffer as well. I went from 18 to about 15 with the onset of these really cold temps. Others will chime in shortly with more ideas I'm sure.

 

Welcome to FTE! great place for finding info on our PSD's
when was the last time the fuel filter and oil was changed?
i would also recommend that you try some fuel additive like Diesel Kleen (wal-mart is a good place to get it cheap). when i got mine truck a few months ago, i started with 16oz per tank and had to change my filter twice to clean up all the junk in the tank. after that i got a few mpg increase.
check the intercooler boot clamps. they can work loose and cause small air leaks that will affect performance and mpg's.
i'm sure someone the resident guru's will chime in shortly and help out

thanks
mike

 

You might want to take a look at this whitepaper on mpg:

http://www.mediamax.com/nlemerise/Ho...Whitepaper.pdf

 

Look at my mods on my 01. I get 13.5 MPG on average on it!!

 

I constantly get 15-16mpg and sometimes 17mpg with my truck.
17mpg when I cruise at anything under 2000 RPM.

Most of the time I get in the upper 15's.

So to me....13mpg seems kinda bad. I don't know what kind of fuel your using or how well your regular maintenance is kept up though.