what kind of mpg do you get?

2004 Freightliner Columbia
14L Detroit 500 HP
10 Spd Eaton
3.70 rears

When I got the truck, I ran 70 mph everywhere and got 5.5-5.7. Dropped to no faster than 65 and I can EASILY get 7.7 on a light load and 6.3-6.5 on a full one.
Avg since buying this truck in August last year is 6.3 MPG.
and I DO idle when I need to.

 

I drove with CR England for about a year, "hated it", but they run 60 series 14L 500/hp detroit with 3:55 gears and were getting 7mpg+. The freightliner- detroit combo is a great money maker for otr.

 

I've been researching the Pittsburg box and also the FASS. What do you think? Is the box worth it? Thanks

 

yes I do. If I had a computer motor I'd buy it. Not sure of the fas though. Haven't looked at it much

 

Its with the pittsburg stuff if you want more info on it.

 

ya, I've seen it, just haven't researched it

 

I beleive the Pittsburgh Power Box will void your engine warranty.

 

A little yellow 12 in a 379 thats been turned up and worked to 450, I average 6.80 running 65-75. Last month it went down to 6.79.

 

I run a FASS pump on my Dodge/Cummins pulling truck, works great on it, it will add a extra fuel filter and a water separator which can't hurt. Diesel injection in Barkeyville said it won't help much with fuel mileage but in my opinion your fuel can never be too clean. I am going to put the one off my little truck on my big truck within the next year or so when I upgrade the fuel system on the puller. The box works great but I can't say that I am getting better mpg's but the truck runs alot better and the fuel mileage didn't go down, so I guess all is good

 

They must prove that the damage was caused by the box