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Old 09-18-2018, 09:25 PM   #1
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Brand: Thor Motor Coach
Model: Chateau 23U
State: Missouri
Posts: 62
THOR #8692
Ford V-10 in Thor 23U

So, this past year we have been driving our 2014 23U a bit. First trip California to Missouri in August, with 101 degree heat and 20 mile/hr crosswinds, the V-10 got poor millage (8.0) and struggled a bit. Only had 5000 miles on the clock.
Got her home, changed to full synthetic Mobil-1 5W-20. Did three or four weekend trips over the summer. Millage seemed to improve a bit, maybe 9.0 or so. This past week she turned over 10,000 miles. Coming home from Chicago, the motor seemed very lively, ran 2300 - 2400 rpm @ 70 mph all down I-55.
Could it be that after the breaking in period, the motor has just loosened up and is running better? Very little downshifting for grades, yes, I realize this is Illinois! Did have the typical head wind faced from Chicago to St.Louis though! Millage seemed to be above 9.0/mile, but I'll make a more scientific study on this next full tank of gas.
I want to say how pleased I am with the Ford motor and chassis. Thor did a fairly good job on the coach, did need a few things corrected! Lucky for me, I'm handy and cheap. Fixed most things myself: new water pump, got batteries and electrical system working well, stopped the damn stove from making too much noise and managed to figure out winterization all by myself, well with help form the forum!
Anyone else had this same experience?
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Old 09-18-2018, 09:36 PM   #2
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I'm getting 6.5mpg towing a Jeep on the interstates, a little more when slower on the back roads. I would love to see 8, but its not really broke in at 5000 miles. Very pleased with the power, I moved from a 22 four winds with a 5spd to a 29 Freedom Elite with the 6spd trans. Nice combination.
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Old 09-18-2018, 09:56 PM   #3
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Model: Axis 24.1
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Yeah its pretty common for the V-10 to "loosen" up a bit around the 10,000 mile mark. There is/was a lot of discussion about that over on ford-trucks.com when it first came out.

On both of my Superduty's I noticed about a 0.5 - 1.0 mpg increase after the 1st 10k. I'm not watching it closely enough on the Axis as this is my 3rd V-10 and thus I'm just letting it do its thing
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Old 09-18-2018, 11:21 PM   #4
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Model: Tiffin Wayfarer 24 BW
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It's almost as if you can "feel" that V-10 starting to stretch a bit; and get nice and loose for the long run!

The 1330 triples in my Spyders got to that point at about the 8,000 mile mark...
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Old 09-19-2018, 01:54 AM   #5
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Model: Quantum RS26
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THOR #10823
Our V10 just rolled over it's first 3000 miles. I can feel it loosening up a bit more on every trip.
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Old 09-19-2018, 01:57 AM   #6
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Hey Geno!
Love your avatar, had a restored 69 Mach 1 until arthritis made it too hard to get in and out of. Royal Maroon with blackout hood and stripes. Miss that car a lot!
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Old 09-27-2018, 02:53 AM   #7
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Quote:
Originally Posted by geno929 View Post
So, this past year we have been driving our 2014 23U a bit. First trip California to Missouri in August, with 101 degree heat and 20 mile/hr crosswinds, the V-10 got poor millage (8.0) and struggled a bit. Only had 5000 miles on the clock.
Got her home, changed to full synthetic Mobil-1 5W-20. Did three or four weekend trips over the summer. Millage seemed to improve a bit, maybe 9.0 or so. This past week she turned over 10,000 miles. Coming home from Chicago, the motor seemed very lively, ran 2300 - 2400 rpm @ 70 mph all down I-55.
Could it be that after the breaking in period, the motor has just loosened up and is running better? Very little downshifting for grades, yes, I realize this is Illinois! Did have the typical head wind faced from Chicago to St.Louis though! Millage seemed to be above 9.0/mile, but I'll make a more scientific study on this next full tank of gas.
I want to say how pleased I am with the Ford motor and chassis. Thor did a fairly good job on the coach, did need a few things corrected! Lucky for me, I'm handy and cheap. Fixed most things myself: new water pump, got batteries and electrical system working well, stopped the damn stove from making too much noise and managed to figure out winterization all by myself, well with help form the forum!
Anyone else had this same experience?
I am getting 7 miles per gallon on my 2018 Thor 37rb with the Ford V10. I believe that is typical.
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