RV News RVBusiness 2021 Top 10 RVs of the Year, plus 56 additional debuts and must-see units → ×
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 12-05-2018, 01:04 PM   #61
2015 Itasca Spirit 27QP
 
Join Date: Sep 2018
Location: Milford, MA
Posts: 269
Beg to differ there ALMike

Quote:
Originally Posted by AJMike View Post
I mentioned in an earlier post that I had two RVs with the Ford V10, a Class A and a class B, and that I got 8-9 mpg with the Class A. That was my average over all of the time I had the RV and did not involve driving in perfect conditions. What I found was that speed was the major defining factor in gas mileage. If I kept my speed under 65 mph I got decent mileage, if I went over I got poor mileage. And I always tried to keep a light foot on the accelerator.

The same thing seems to be true with my current Class C diesel RV. Keep it under 65 and I get about 16-18 mpg, go over 70 and the mileage goes way down.

All in all the gas V10 served me very well and I would buy one again if I were getting a gasser.
Unless your Ford V10 was on a baby carriage, I doubt very much that you got 16-18 mpg. 55-60 mph, no hills, no head wind, no toad or trailer and you can expect to get 9.5 mpg at best in a 28' class C. You might do .25 mpg better in a shorter class C. I logged every single gallon of gas going into my 28' (27 QP) Itasca and put the gas and miles at every fill-up in a spreadsheet that spans 3 years and 28,000 miles. It even shows the #10 cylinder ignition coil failing over time when the only indication was an occasional check engine light on bigger hills. Looking back, I gradually lost up to 1 mpg at the end when the light started coming on without hills so I bought a scanner to see what the problem was. Since I almost always tow something, my best average mpg after repairing the coil was 8.6 pulling a pair of Polaris ATVs. I get 7.9-8.0 mpg towing the Jeep Wrangler and staying at 55-60 mph. My personal best mileage without towing but driving 65-70 mph was 9.1 mpg and hills were involved. One more thing, using the generator will mess with your gas mileage calculation as it consumes gasoline too. You can estimate about 3/4 gallon per hour, depending on load, to run the generator.
JoeC is offline   Reply With Quote
Old 12-05-2018, 02:34 PM   #62
2018.5 Fuse, model 23T
 
Join Date: Oct 2018
Location: Apache Junction, AZ
Posts: 901
Quote:
Originally Posted by JoeC View Post
Unless your Ford V10 was on a baby carriage, I doubt very much that you got 16-18 mpg. 55-60 mph, no hills, no head wind, no toad or trailer and you can expect to get 9.5 mpg at best in a 28' class C.
Please re-read my post. I did not say I got 16-18 mpg with my V10 gasser. I said I got between 8 and 9 mpg with the gasser on my Class A and about 13-14 mpg or so with my Class B, and those were averages for all of the time I used them.

I said I got 16-18 with the Ford diesel in my Fuse.
AJMike is offline   Reply With Quote
Old 12-05-2018, 04:01 PM   #63
Winnie-Wise
 
akeagle's Avatar
 
Join Date: Mar 2018
Posts: 487
Another factor in MPG that I'm a little surprised few have mentioned: the running of the chassis A/C. According to my ScanGage the A/C reduced my mileage by about 1 MPG.
__________________
2016 Minnie Winnie 27Q on a 2015 Ford E450 chassis. Retired U.S. Air Force. Living in Anchorage, Alaska
akeagle is offline   Reply With Quote
Old 12-05-2018, 06:52 PM   #64
2018.5 Fuse, model 23T
 
Join Date: Oct 2018
Location: Apache Junction, AZ
Posts: 901
Quote:
Originally Posted by akeagle View Post
Another factor in MPG that I'm a little surprised few have mentioned: the running of the chassis A/C. According to my ScanGage the A/C reduced my mileage by about 1 MPG.
That is about what I see with my car when I turn on the AC, and what I saw with my Class B RV with the V10, but I do not think I saw that with my Class A. Then again it was a long time ago and I can not be sure.

I would not think that you had much use for AC in Alaska. The year I was there people used to say "Last year summer was on a Wednesday" so I am a bit surprised that it has even come up in Alaska.

The AC mileage issue is something I will look at with our diesel Fuse when summer comes again, as it will in southern Arizona.
AJMike is offline   Reply With Quote
Old 12-05-2018, 07:17 PM   #65
2018.5 Fuse, model 23T
 
Join Date: Oct 2018
Location: Apache Junction, AZ
Posts: 901
Quote:
Originally Posted by Winterbagoal View Post
Did either of your 6.8L V10s have a real time or averaged fuel economy dash display, either L/100km or MPG? My 2016 didn't, but my 2017 3.0L V6 diesel Navion does. I think there's a reason for that? I even asked the dealer about it, and he said no there isn't a fuel economy display on the V10. We left it at that.

...

I do agree with your "lead foot" observations. The diesel seems particularly fussy about speed and fuel economy, which is very predictable (even without my dash display). I found my best trade off between making good progress from A to B, and squeezing every drop of power out of a gallon of diesel is somewhere around 60mph. 55mph increases fuel economy and 65+ mph kills it.
Neither of my V10s had a fuel economy display, and I am glad. Had I seen my fuel economy on display I might have just stayed home. But my diesel Fuse does.

I agree about the speed specs and I have gotten the best economy at about 60. Even lower is better but I don't want to be a traffic hazard. I got 18 during one trip where I kept below 60 and about 17 on another trip at about 65. And the wind plays a big part. I ran into very severe head winds in the Texas panhandle and my mileage dropped to about 13-14. Pretty depressing.
AJMike is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Coolant Reservior for class A Ford v10 Nmurphy9794 General Maintenance and Repair 2 03-25-2018 08:57 AM
Correct oil type for Ford Triton V10 engine buzzyb General Maintenance and Repair 9 04-25-2015 11:18 PM
Ford V10's Blow plugs? Bob Witt General Maintenance and Repair 9 09-05-2013 01:35 PM
No space tire rod 35U F53 Ford V10 1999 Lake11969 Running Gear, Axles, Brakes, Wheels and Tires 9 12-02-2010 09:32 AM
Ford V10 Doghouse Insulation General Maintenance and Repair 21 12-31-1969 07:00 PM

» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Winnebago Industries or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 11:25 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×