Highest MPG while loaded

03 it's a multi trq tune. I believe the ECM had a boost controller? Boost was either 25psi or 30 it was annoying watching the gauge.

 

42psi on a hill

 

Not yet, thought about it though. Shouldn't it make similar #s to a Detroit 12.7 though?

 

Sir I would never call a man a liar but I have been owner op for 17 years and run a average of only 4 trucks full time and so my own mechanical work all the way to inframes. I have grew up trucking and lived it daily it’s my life lol. If your truck was getting 9mpg then I’m sure you still have it. I would love for you to somehow me and you cross paths and run together and I see it myself. I could retire in a couple years if any of my trucks got that. I have NEVER had a truck average over 6.8. Like I said average. I do good to stay in the high 5 range. Again I’m not saying your making it up but buddy so please don’t take it the wrong way but maybe some math is off or something. you would be doing a massive favor because I would own 4 of them just like it soon as I could buy them. But I have $1,000 cash that says that pen to paper on miles and gallons used it will not get 9mpg. You show your getting 8.5 mpg driver and I would say you probe it and you’ll turn a $15,000 freight shaker into a set your price and sell it tommorow. I never post anything on internet I have never even had a Facebook account but when I seen this I just had to respond. You must have a truck that was never ment for production for truckers to have. But hey maybe I’m wrong and it gets 10mpg and that’s why all these freight haulers move freight for $1.50 a mile.

 

What a crock of ####. 9mp. Dude you need to learn how to do simple math if you are getting that. But if you think this is true then maybe your one of these freight hauler moving freight for 1.50 Mile also. I really hope you put that on here to be funny lol. If you didn’t and your a o/o then driver your already bankrupt and prob can’t afford the internet service to read this message. I usually don’t respond to anything on the internet and have never even had a Facebook but I seen 9 mpg and just had to say something just in case there in some poor guy looking to buy a cheap ### Columbia and puts all his money in it and is let down when it does good to get 6.5 prob. You should be ashamed of yourself man. I have been o/o for 17 years and only run 4 trucks but I live, eat, sleep and #### trucking. It’s all I know how to do. I do all my own work no matter what it is including Inframes and yes I drive also. Which we truck. Grain, cattle, flatbed you name it one done it and I have never personally had one get a AVERAGE in a week over 6.5 but I know some light ### freight haulers get better but there isn’t a truck made that’s in the United States of America pulling a trailer with a stock engine getting 9. WTH is wrong with you. I truck all over except California and I have $5,000 cash that says you can’t show me in person your getting that. We always from Arkansas to the east cost so let me know we will meet up amd probe me wrong. Wow. But you made my night that’s funnier than Rodney carrington right there lol. I’m not one to call anybody a liar driver so I hope you don’t take this the wrong way but driver you need to really check your math or something. Maybe your buying fuel for $6.50 a gallon and going off that I don’t know but your wrong.