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Old 12-02-2018, 12:41 AM   #22 (permalink)
Kingofwylietx
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Join Date: Dec 2018
Location: Dallas, Tx
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I have a 2017 3.5TT super crew 4x4 with the 6.5’ bed. My lifetime hand calculated mpg is just north of 18.3 for 30k miles.

My best ever tank was 25 mpg for around 300 miles. It only happened once, but it was remarkable enough that I took a picture of it. It wasn’t by chance, I was hypermiling the heck out of it, it was summer, and I was driving around 60mph.

I have modified my trucks mpg readout to be more accurate, which was luck that Ford lets you do that by entering engineering mode. I had to make a 6% correction, as the truck was particularly optimistic about how efficient it really is.

The real reason I wanted to reply to this thread is that I can’t imagine 30mpg in a 3.5TT. I had a loaner 2.7TT that was a super cab 2wd. I was able to get just over 30 mpg by hypermiling it. However, I’m sure that trucks mpg readout was every bit as optimistic as mine was set from the factory...so I wouldn’t stand behind that number other than to say it got great mileage.
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