Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
Thread Tools Search this Thread Display Modes
Old 12-07-2012, 06:55 AM   #1
Junior Member
Join Date: Jun 2012
Posts: 1
Cat 400 HP

Could someone give me an idea of the fuel mileage on a 400 cat driven at 65mph. I am thinking of going to a 2007 Beaver which has this engine. I am now driving a 360hp. Cummins. Thanks,

rmorton is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 12-07-2012, 07:07 AM   #2
Junior Member
Join Date: Aug 2012
Posts: 24
Mine is 8 MPG with toad on a 40 ft coach that weighs about 45,000 lbs. depends on many variables.

Haleyjean50 is offline   Reply With Quote
Old 12-07-2012, 08:29 AM   #3
Senior Member
radams's Avatar
Join Date: Jul 2010
Location: Omaha, NE
Posts: 398
I get an overall average of 7 on mine. That includes flat land and mountain travel with a toad.
radams is offline   Reply With Quote
Old 12-12-2012, 09:03 PM   #4
Join Date: Apr 2012
Posts: 79
Blog Entries: 2
On a 4,400 mile run, I got 7.5mpg pulling a Jeep Wrangler toad. I also had a lot of trouble with overheating.
bgc44a is offline   Reply With Quote
Old 12-12-2012, 09:30 PM   #5
Senior Member
Join Date: Oct 2010
Posts: 428
Originally Posted by bgc44a View Post
On a 4,400 mile run, I got 7.5mpg pulling a Jeep Wrangler toad. I also had a lot of trouble with overheating.

I think the prevailing thought on this website concerning the overheating issue is probably due to a rear radiator that needs to be cleaned. The engine blow-by gets on the radiator finns and then dirt/dust collects on it. There are several threads that address the cleaning process. Hope this will help your situation.
Poptop is offline   Reply With Quote
Old 12-13-2012, 04:20 PM   #6
Senior Member
Cat320's Avatar
Fleetwood Owners Club
American Coach Owners Club
Join Date: Mar 2011
Posts: 4,975
If you want to improve that MPG, slow from 65 to 60.
2014 American Eagle 45T
DD 500
Pulling a Honda CRV
Cat320 is offline   Reply With Quote
Old 12-13-2012, 04:27 PM   #7
Senior Member
docj's Avatar
Official iRV2 Sponsor
Join Date: May 2011
Posts: 4,067
My 32,000 lb coach with a C-12 Cat pulling a 3,500 lb toad got 8.1 mpg on its first 71,000 miles according to the SilverLeaf computer. I typically drive 63 mph on level roads.
Joel Weiss--WiFiRanger RV Ambassador
RVParkReviews administrator
2000 40' Beaver Patriot Thunder Princeton CAT C-12
docj is offline   Reply With Quote
Old 12-13-2012, 05:18 PM   #8
Senior Member
Tha_Rooster's Avatar
Join Date: Aug 2008
Location: Georgia
Posts: 4,710
6-6.5 pulling 7,000 lbs going 65-70 with zero trouble with side radiator.
2007 Fleetwood Revolution LE 40V
Tha_Rooster is offline   Reply With Quote
Old 12-14-2012, 12:50 PM   #9
Senior Member
distaff's Avatar
Join Date: Dec 2009
Posts: 1,322
Not exactly an answer to the question, but this link is very good:

My C13 gets about 7.3 mpg in mountain driving pulling a Suburban. CGVW is about 48,000 pounds. Flat ground without the toad I saw 7.8 mpg.

2006 Patriot Thunder C13 Allison 4000
2010 Ford Flex Ecoboost AWD
distaff is offline   Reply With Quote


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

» Featured Campgrounds

Reviews provided by

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:15 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.