MPG
Posting Guru
Joined: Sep 2009
Posts: 2,015
Likes: 4
From: Lakehills, TX
Yeah, it seems to be primarily 3.31's for mileage and 3.55's for towing performance. I have the 3.55's with the 18" wheels (stock Lariat FX4 Michelin ~33" tires) and can't keep it up over 18 with the DPF causing regens that waste too much fuel.
Senior User
Joined: Aug 2009
Posts: 102
Likes: 0
From: MA
I swear my truck almost never regens. I wish the message was longer though. They have no problem harassing me about the oil change that's due, but apparently don't want to call any attention to the regen process. 
I watch the mpg numbers like a hawk though, and catch the regens that way ~50% of the time, and on the message the other 50%. 100-200 miles would be about every other day for me, there's no way it's that frequent. I'll have to start paying closer attention and writing it down and see what the actual frequency is. Maybe I'm just missing them.
I watch the mpg numbers like a hawk though, and catch the regens that way ~50% of the time, and on the message the other 50%. 100-200 miles would be about every other day for me, there's no way it's that frequent. I'll have to start paying closer attention and writing it down and see what the actual frequency is. Maybe I'm just missing them.
Lead Driver
Joined: Nov 2011
Posts: 9,544
Likes: 43
Camper package probably, that's the way my truck is setup with the camper pkg. 3:55 with 18s
Senior User
Joined: Aug 2009
Posts: 102
Likes: 0
From: MA
I've been meaning to see if I can update my scangauge2 from the old 6 liter to show me something useful on this.
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Posting Guru
Joined: Sep 2009
Posts: 2,015
Likes: 4
From: Lakehills, TX
Not literally, but just as well. I actually wanted the 3.31's with the 18's but was talked into the 3.55's by the dealer that was willing to work with me. My truck came from the factory with the nice Lariat 20's but they traded those off for another truck that came with the Lariat 18's, which is what I wanted, and put the 20's on that other truck instead, and knocked the price down accordingly. I have no real regrets. I may put larger tires on these 18's one day (to match the factory ~34" tires) which may or may not help with MPG, but I have no complaints about lack of power.
Official Ford Rep
Joined: Oct 2010
Posts: 3,123
Likes: 6
Hi everybody!
We've got an excellent assortment of articles over at Personalized Vehicle Owner Information; check out this one on fuel economy to save some bucks when visiting the gas station: Personalized Vehicle Owner Information
Crystal
We've got an excellent assortment of articles over at Personalized Vehicle Owner Information; check out this one on fuel economy to save some bucks when visiting the gas station: Personalized Vehicle Owner Information
Crystal
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