Compression Ignition Addict
Join Date: Aug 2007
Location: New Brunswick, Canada
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I get 14MPG towing a 15K RV, The truck fan speed is also calibrated at 195F, And the turbo pressure is at 10PSI. I found out that the fan will calibrate temperature at 190F when programed stock and if the thermostat does not alow the water temperature to hit 190F you are running the truck with a closed turbo and fuel enriched to heat up the engine to 190F.
You will never know where your fuel lost is unless you have the Scangauge to indicate the bad fuel mileage.
I read many Forums and every problem I see can be found an resolved with a running gauge that will tell FIMC volt, EOT, Instaneous MPG, Fan Speed, digital Coolant temperature.
So A gauge at $160 would surely pay for itself in a little time as it did with mine.
2005, 6.0L, 6 Spd Std, 3.73 Rear End, F250SD, Extended Cab, 4 x 4 Long Bed. 2008 extension mirrors. GPS/TV/DVD/CD/Rear Cam/Radio installed, Max Energy programer by Hypertech, and Fuel Pressure Gauge. ScanGaugeII for 60 plus XGauges, and MPG. ELC Cat EC-1 Coolant, Pull a 39ft 15500Lbs 5th Wheel Camper Trailer. Mileage Avg is 20MPG, and pulling 12.6MPG.