updated 7.3 mpg
Senior User
Joined: Dec 2019
Posts: 310
Likes: 1
Cool story. Don’t have any interest in arguing with you on it.
Elder User
Joined: Apr 2010
Posts: 754
Likes: 0
Powerkid is right. For a F250 the 3.55 is standard with the 7.3 and the Tremor package. IF your talking about a 350 then you are right. But if you read his post completely it said 250.
New User
Joined: Feb 2020
Posts: 2
Likes: 0
Figured I would throw out what I have seen thus far for my first post.
- F-250 Lariat 4x4 - Ultimate Package
- 7.3 with 3.55 rear end
- City in the 13’s and Hwy hovers from upper 14’s to low 15’s on average
- High was 16.2 in eco mode running flat highway around 70 mph and passing through one major city without traffic but speeds closer to 60 (hand calculated approx. 250 miles)
- Haven’t towed anything over an extended distance, so can’t help there.
- Avg. 14.2 with 1580 miles (computer)
- very pleased with the truck
More Turbo
Joined: Jan 2020
Posts: 605
Likes: 61
Figured I would throw out what I have seen thus far for my first post.
- F-250 Lariat 4x4 - Ultimate Package
- 7.3 with 3.55 rear end
- City in the 13’s and Hwy hovers from upper 14’s to low 15’s on average
- High was 16.2 in eco mode running flat highway around 70 mph and passing through one major city without traffic but speeds closer to 60 (hand calculated approx. 250 miles)
- Haven’t towed anything over an extended distance, so can’t help there.
- Avg. 14.2 with 1580 miles (computer)
- very pleased with the truck
Thanks!
Tuned
Joined: May 2003
Posts: 261
Likes: 4
From: Montana
Here’s what I’m seeing during break-in period:
- F250 CCSB FX4 Lariat Ultimate Sport
- Stock 20” Wheels with Michelins
- 7.3 with 4.30 rear end
- 40% city, 60% highway
- I live in a mountainous region and have crossed the continental divide about 8 times with the truck so far
- Average 12.9 with right at 1,000 miles on the truck so far (according to trip computer)
- City is in the mid 11’s
- Highway is mid 14’s (just got 14.8 on a 210 mile trip) - average speed I’d estimate just under 70mph
- First tank was 89 octane (dealer filled it up), but I fill it up with 91 octane.
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Mountain Pass
Joined: Sep 2019
Posts: 113
Likes: 14
From: Aubrey, TX
I have a 2020 F250 4x2 CCLB 7.3 w 3.55 I received 1-4-20
Today I had to make a 45 mile round trip or 90 miles total
About 50 of the 90 were Interstate and 35 of the 90 were secondary roads
5 miles were City Streets
Average for trip was 15.7 mpg
No load in truck, just me and my toolbox.
Terrain slightly hilly, rolling
Average just around town stop & go 13.5 +/-
I’m very satisfied
Today I had to make a 45 mile round trip or 90 miles total
About 50 of the 90 were Interstate and 35 of the 90 were secondary roads
5 miles were City Streets
Average for trip was 15.7 mpg
No load in truck, just me and my toolbox.
Terrain slightly hilly, rolling
Average just around town stop & go 13.5 +/-
I’m very satisfied
Thread Starter
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Cross-Country
Joined: Apr 2006
Posts: 77
Likes: 4
Ok thanks for the update. Just returned to Canada from Belize for several weeks. Glad to be home. I left the build sheet with my guy at Ford here in Prince George. Will see him this week. Alot has changed in the last month. Interest rates are falling, the economy is having a brief ****, hell I dont even know if the Ford plants are running. I feel like this next month will be a great time to order a new truck
Senior User
Joined: Dec 2019
Posts: 310
Likes: 1
With so many gears, I don't think it matters much other than getting a load started. All your changing with the different rear end gears is if your towing in 7/8 or 6/7th gears. With that many choices, the truck will just pick whatever gear keeps the engine in it's power band which means it will just be a gear or two lower with 3:55's. End result is the same mileage and same result except the 3:55's won't feel as good getting off the line.