My return home trip from Missouri to Texas this is after a new lift pump was installed, truck ran better hence the slightly over half tank and 403 miles.
avg 23.5 mpg....

 

must be nice........ I get happy when I see that many miles and I need to fill up, cause i am dang near empty

 

mph or mpg??
Must have been a slooooow drive!

 

That's a 305/555 engine for ya.... I have actually read this posted many times after someone has there LP changed out....

 

Wow, that's great. I just made a pretty lengthy trip myself to the Memphis, TN area....and I was happy with my 19.00 mpg hand calculated run.

..

 

How did the last half go my truck will go 400 on the top half and about 600 when the light comes on. wish the bottom half went as far as the top half. lol still better than any gasser I have driven.

 

I was thinking the same thing....when MY fuel guage reads 1/2 full , it`s really more like 1/4 full

....I would be happy to get 400+ miles out of a full tank though

 

I get 450km like f all at half tank and 300km to 350km for the last half cruising at 120km with 4.11 gears i hope bigger tires help it get better

 

Lucky for me its not my daily driver now it only has 450 on it. sitting in the garage, maybe next yr i will fill it back up. Highway always has given me 23 mpg it may be the quadzilla on it...set on 65 hp..

 

The big thing is speed. I ran empty to Maine (with all the other gears ect) and got like 15, towed 2 cars back on a trailer and got 14.9, but was doing 70 instead of 75. It's amazing how much wind resistance plays with mpg. Slow to 55, I bet you you could really get some millage. My best millage ever in my truck was 20.1 going to maine it was snowing, and traffic was 55-60, so yes MPH has a huge part of MPG

 

I don't get it, I'm getting over 470 miles for every tank hand calculated. I run stock, and empty mostly but I also have a lift and 35's on my mega. Avg 13mpg with trailer that's going from 15gallons + -

 

fellow TX hunter, its the difference in the motors, I don't have cat on mine or do i have the 3rd injection event , yrs 03 04 will always be the higher mpg trucks.... its why i wont upgrade.....

 

cool

 

I get about 19mpg and about 620 miles per tank full for highway driving if I keep it at 67-69mph. on my 06 Mega Cab. If I go over 70mph then it drops down significantly. The sweet spot seems to be about 1800-1900 rpm cruising along without a load.

 

I drove from Delta Jct to anchorage 365 miles took 16 gls to fill up approx 23 mpg'
Had all the updates for truck done an tranny flushed
drove back to delta and filled up with 14 gls approx 26 mpg....
speed was probbaly 55 average