New Truck MPG's???

Still 3 pieces and much better quality made. It is a custom made casting.

 

I average between 6.5-6.9....with the occasional 7+(worst tank ever was 5.93 with a 30+ mph headwind for 250+ miles) i check mpg by hand every tank...always go between 600-1000 miles between fillups and fill to same spot on both tanks everytime
2000 frieghtliner classic shorthood, 861000 miles, 54" midroof sleeper, 255" wheelbase, crappy recap open shoulder tires on drives, 12.7 500 hp detroit with bullydog programmer, 13 speed and 3.70's low pro 24.5 rubber dragging a all steel 94 fontaine spread 48x102 with low pro 22.5, oh and m100463 straight through donaldson mufflers

i haul alot of flat lumber loads, shingles, coils(skidded and standup) with plate steel and paletized frieght mixed in.

most of the time i accelerate like theres an egg under the pedal....split the top 4 gears loaded and top two empty...upshift at 15-1700 depending on gear, downshift at 13-1400 depending on conditions. cruise between 62-65 on gps(14-1500 rpm)...with occasional 68-73 mph if im in hurry


sorry forgot to add...i run the southeast only

 

You can easily get 7+mpg with a new truck. With a 450ST Cummins with a 10 speed in a T660, 48 foot van trailer loaded to 75,000 all the time I was able to get 7.3 mpg running 62mph. I did the same run with the same amount in the trailer for 4 months with three different trucks. All were brand new and all got 7+ mpg. That should show you that it is not that far out of reach.

 

i would imagine that 7 is somewhat comprehensible if not easily acheived on the flat land side. but on the mountainside. 6 is hard to maintain in the winter. in the summertime it's more realistic.

 

Check out the guys on the ACT lp program "bigkid2" there gettin 8-9 MPG with the new KW T660

 

Hey all, just thought I'd chime in. Not an O/O yet, but plan on going that road, so I've been paying attention to the fuel side. I drive a 2011 ProStar with a Cummins ISX 450, 13spd, not sure on the rear ratio. Limited to 60mph. I pull a 53' reefer, most loads at 40k+, a lot of mountain West. So far my average has been between 7.4 and 8.2. I idle as little as possible, use a bunk heater and a headlight rather than the cab lights for the most part... I've begun to mellow out my acceleration more, and have noticed a pretty solid improvement in mpg.

In a few months I'll be buying my truck, and so far, this one is pretty nice...

 

Im getting 8.0-8.5 with my 2011 Pro Star. Cummins 450, 13 speed, same thing...

 

Do you have 100 gl tanks just wondering cause you said you fuel between 600 and 1000 miles ... And also how do you make sure you put the same amount of fuel in, running the southeast is not that hilly just wondering i am trying to improve my 5.5 on a 02 classic xl same set up running the midwest

 

SHC with what you're hauling your gonna struggle to get good MPG's no matter what you have pulling it. Buying a new truck would just put you under a big payment with crappy fuel mileage.

Now I'm sure if you bought a bunch of aftermarket junk to put on a new aero truck and become a road hazard by not doing the posted speed limit you could get the mileage up, but you could probably do that to the WS and be farther a head and not have to put up with motor problems and a payment.

If I was you, I'd go buy a trailer so you can get out from that high trailer rent...

BTW, thanks, I feel better about my dinosaur getting 5.25mpg...LOL

 

i have 120 gallon tanks, i always try and make sure im parked on level ground fueling...most of the time i fuel at the same few stops. I fill each tank where the fuel touches the end of the filler neckon the top part...right before it start bubbling back at you. i just dont like to let my truck below half a tank or so....i like keeping all my vehicles full in case a need to make a run somewhere etc..

just last week i fueled in dublin, ga ran a load from dublin, ga to winder, ga from winder, ga to lynchburg, vA deadheaded 96 miles to oxford, nc loaded headed back to georgia, filled up in salisbury, nc at shell exit 71, 789 miles 110 gallons, 7.17mpg, steel and shingles, 77-79000 Running around 65 mph with occasional 68....letting it roll in the hills up i85

my bullydog really helped out a good bit...bumped mpg up by about .4-.6 best i can tell