View Full Version : Fuel Mileage
Just went 1125 miles since Wed night and still not home yet.<br><br><br>Fuel mileage from Cynthiana to Bowling Green IN back to Simpsonville KY was 16 miles to the gal avg speed of 75 (415.2 miles).<br><br>From Cynthiana to Owensboro Ky with a 6500# daul tendam gooseneck unloaded was 10 miles to the gal with an avg speed of 75 ( 245.6 miles).<br><br>From Owensboro to Cynthiana with 10,000# on gooseneck I got 8 miles to the gal at avg speed of 70 (221.7 miles).<br><br>I drove my brothers 02' Chevy 2500HD gas back to Bowling Green IN from Cynthiana this afternoon to see what he gets in his truck. <br><br>I think my mileage sucks on my cummins, Am I right?
11-30-2002, 08:20 PM
You are right. It sucks on your Cummins. Although winter blend fuel is the major cause of a drop in mileage right now (mines down over 1.5 mpg), yours is still pretty low. Have you torqued the intake manifold bolts to spec as well as the charge pressure hoses? Cleaned the IAT? Those two things can make a significant difference.
12-01-2002, 07:10 AM
Just got in from a 675 mile run loaded both ways with a 44ft enclosed gooseneck 16750# all freeways average speed 72 mph headwind going out 9.5 mpg tailwind commin back 12.8 mpg...this is normal for the speeds I cruise at...if I keep my foot outta the throttle and cruise at 60-65 I get 14.5 or better...my trailer empty weight is 7418 lbs...but I dont have the electric cummins
:'( ??? :'( ???
12-01-2002, 08:03 AM
[laugh] [laugh] Think you are doing real good for your speeds,course I have a different sett-up. In my 2 back to back trips to Mesa,AZ,loaded out with near identical units,I found by dropping from 65 to 62 got me about .4 on the same stretches. Coming home I do limit + some. Seems as though playing and paying go together.<br> Wow,you do cover ground.Be safe.
12-01-2002, 08:44 AM
CH:<br><br>All things considered (speeds, winter fuel, etc.), it doesn't sound too bad to me. My mileage is down too. It could be worse... You could be driving a V10 gasser!
My mileage varies when I'm loaded anywhere from9.5 to 14 thats in a 6x6 3:54 5spd that going 60 to 75 depending on the load. More wind drag less mileage. This was on the 01 when it was turned up. I get better mileage at around 2300 to2500 rpm. This is still alot better then any other dually that I've owned darn good for a 6x6
12-01-2002, 02:17 PM
Ch. How did the trailer do. I hope no trouble. I was going to put the tag on, but forgot. Oh well. Sounds like what I am getting on mine also.<br><br>By the way, this may be a dumb question, but what is an IAT? My manifold hasnt been torqued. I did find the back bolt hanging out resently. I tightened it up though. Not with a torque wrench however.
<br>Ch. How did the trailer do. I hope no trouble. I was going to put the tag on, but forgot. Oh well. Sounds like what I am getting on mine also.<br><br>By the way, this may be a dumb question, but what is an IAT? My manifold hasnt been torqued. I did find the back bolt hanging out resently. I tightened it up though. Not with a torque wrench however.<br><br><br>Your trailer did great, Thanks for letting me use it. ;D
12-01-2002, 04:57 PM
No problem. It may be a few days until I can pick it back up so if you need it just use it. Hope the Holidays were great.
12-21-2002, 12:19 AM
I'm up here in Canada with temps. around 25 to 30F and I am getting around 18 to 20 mpg US depending if I drive like and old lady or spirited. In Summer I average between 20 and 22 MPG. ;D
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