Just got back from a 2-week Southern Tour towing a 28ft Wilderness 5th wheel camper. Truck data in my signature is current. Rig ran great but always in search of better fuel economy. Around town empty it will get ~18 mpg. On two occasions I've taken it on road trips (empty) to Dayton (400 miles flat terrain each way) & gotten a hair over 20 mpg (hand calculations) running 67 mph (2200 rpm). On this trip towing the 5th wheel (trailer wt ~ 8k lbs) on fairly flat interstate roads at ~ 60 mph (slightly under 2000 rpm) I got 13.0 mpg. This was on the first leg of the trip from St Louis to Kentucky - the whole tank was burned with trailer in tow on the interstate. Later fill-ups yielded better mileage but that was due to lots of driving in and around without the trailer. On the flats I'd see around 6-9 psi boost with EGTs running around 675 - 775. But in the hills around Chattanooga boost pressures would often climb to 24 psi and on long grades I'd see EGTs nearing 1000 f. I was controlling the speed manually at first but soon switched to cruise control because my leg got tired. Highest numbers I saw was 27 psi & 1075 f. I had the Juice set on 2x5 on the first leg but later switched to 4x5 to see if it made a difference - not noticeable in fuel econ but better pull in the hills with a slight increase in EGTs.Generally I'm happy with the performance -pulled like a Clydesdale & didn't loose speed except on the very steepest grades. I'm not too disappointed with the towing fuel economy either but 2 or 3 more MPG would have me smiling. Is there anything to be gained while towing from an injector swap?Thanks,Joe in St Louis (Go Cards!)

when i tow my 30 ft trailer or a excavator. I only get around 13 or 14. But i am running 150hp injectors. Last year running from Portland to Lewiston i got 15. But that was all highway and i was running my boxes stacked. Only issue is my cruise control isn't smooth because it takes no throttle to keep it moving on flat ground so it lurches. That was by hand so it was probably lower. I was taking two log grapples and a boom sections what ever they weight.

So the RV275's are the next step up from stock?

So the RV275's are the next step up from stock?

You could say that. . . They're +40 HP over stock, and that's the smallest injector above stock that I've seen. . .

I just popped in some +60 HP injectors the other week and I'm still in the fun stage. I may or may not have done 60 to 100 rips on the highway this morning with another 24v and a square body 7.3...after that I did a refill hand calculated got 15.1 mpg (16 overhead) and that was 75% or more around town driving. I'm more than willing to bet my numbers are up from stock (if I can keep my foot off it). My previous high in stock form was 19-20 mpg highway trip.

Who'd you get your 60's from? Are they clean or a little hazy? Thx

Who'd you get your 60's from? Are they clean or a little hazy? Thx

Jacob - diesel auto power

Who'd you get your 60's from? Are they clean or a little hazy? Thx

Clean clean clean. With the upgraded fuel system and injectors maybe I got a puff on cold start, but that's it. With the Edge EZ it does puff at cold start then it clears up in seconds. I only get a little smoke when I PURPOSELY lug it in overdrive

Like I'm still getting into the 20's with my +50HP and 5x3 setting on the Edge Comp. I still get a wee-bit of smoke but all-a-round MPG seem to be able to get 22-23 MPG on the scanGauge II.