MPG Changes since Customer 08B07 ECM Reflash
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Senior User
Joined: Apr 2006
Posts: 349
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From: San Diego, CA
MPG Changes since Customer 08B07 ECM Reflash
I keep records of my MPG in a spreadsheet and I noticed that my MPG is down since they reprogrammed my Job 1 truck
Cheers!
- Bob-tailing - down 0.6 MPG
- Towing 10k fiver - down 1.2 MPG (But for one trip the headwinds were fierce coming home) I'll know better by late July after the family and I get back from our summer road trip.
Cheers!
Super Moderator
Joined: Aug 2008
Posts: 37,383
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From: Frederick, MD
well I know mine is better, but mostly because I had a bad flash when my tcm was bad.
Had mine in since Dec, went to Arizona and back, almost 17 mpg's on one stretch of road. Whole trip aver was 14.5 I think. 4800 miles.
Worst was a tank of bio, down around 9 for that tank.
Had mine in since Dec, went to Arizona and back, almost 17 mpg's on one stretch of road. Whole trip aver was 14.5 I think. 4800 miles.
Worst was a tank of bio, down around 9 for that tank.
New User
Joined: Oct 2008
Posts: 10
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I saw the same thing with the re-flash, MPG dropped from 16's to 13's. Took it back to dealer, they basically said "sucks to be you". No codes / no problem.
I am pondering taking it down the road to another dealer. I like the truck but the next truck needs to come from a dealer with support. I would even change brands for a better dealer.
I am pondering taking it down the road to another dealer. I like the truck but the next truck needs to come from a dealer with support. I would even change brands for a better dealer.
Posting Guru
Joined: Jan 2006
Posts: 1,513
Likes: 1
Mine is worse too. I could get 16 prior to the flash and now I am lucky to hit 13 on the highway with the cruise set to 63-64 mph. Most of the time its about 11. Took it to the dealer twice. 1st time I got it back the OASIS said "vehicle not rated for MPG by Ford or EPA" so they didnt even look at it. After raising hell with them they claimed to have checked fuel trims, codes, and even a road trip all in about 2 hours time and according to my trip odometer their road trip was 1.2 miles to diagnose a mileage concern. Of course nothing is wrong and my truck is perfect.
Im at 6k miles, already had my DPF replaced once and now my tailpipes are getting black again. Time for a new dealer.
Im at 6k miles, already had my DPF replaced once and now my tailpipes are getting black again. Time for a new dealer.
