Compression Ignition Addict
Join Date: Oct 2007
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My Mileage Stinks! Going to Delete!
I can't seem to get more than 10.5 mpg (city driving) in my 2013 F350 Crew Cab 4x4 with the 3.55 axle and factory 20"wheels/tires. This is the same or less than I got with any of the five 6.4 trucks that I've owned. Several of my friends have the trucks configured the same as mine (2011 & 2012's) and consistently get 13 to 14 mpg, under the same driving conditions.
Yesterday, I took my truck to the Dealer (the Service Manager is a good friend) and he confirmed that my mileage was POOR, compared to other customers and his personal experience. He ran a diagnostic, which was on-the-money, updated my ECM with the latest software, adjusted a few parameters, then ran another diagnostic, which once again showed that everything was fine.
When I left the dealership, I filled-up, reset the trip computer (which by the way has always been within one-tenth of a mpg of hand-calculated mileage) and started driving. Everything looked GOOD for the first 50 or 60 miles (13.5 to 14 mpg), but then the mileage started dropping and as of this Post, is back down to 10.4 mpg.
I wish the Cleaning Exhaust Filter message required you to have to acknowledge it, but it doesn't, only staying ON for 1 to 2 seconds. I'm guessing that I'm regenerating a lot, which is killing my mileage.
I've checked for dragging brake pads, adjusted the air pressure in all the tires to Maximum and have really been careful with my driving habits, but nothing seems to help.
Anyway, I've ordered an H&S Mini-Maxx and an AFE Atlas 4" delete pipe, in hopes of increasing my MPG's with the delete. I drive 18,000 to 20,000 miles per year, so if I can average a 3 mpg increase, it will take me about 13 to 15 months to pay for the delete equipment.
Did any of you who were getting poor fuel economy like mine (with the DPF ON) see a 3 mpg or more increase in fuel economy after you did a delete?
I'm talking about HAND CALCULATED fuel mileage, not the increases that are seen when you Tune and the trip computer starts exaggerating things.
I should have everything in by the end of the week and will report back once everything is installed and I've racked up some miles with the delete.