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 11-28-2013, 09:33 AM   #1
Join Date: Nov 2013
Location: Joliet, Illinois
Posts: 85
Motorhome rookie

I just purchased a 1998 Fleetwood Discovery 36A motor home with a 5.9 Cummins Diesel with 275 hp. Is there a filter for the coolant? I am interested in doing oil changes and fuel filter changes, as well as air filter changes. Never having a diesel before, I am not sure which filter is for what. Are there any pros to help get me started? thanks in advance.

spectrum581 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 11-28-2013, 09:54 AM   #2
Senior Member
Mjay's Avatar
Fleetwood Owners Club
Join Date: Sep 2013
Location: Southern Alberta
Posts: 112
Welcome to the forum, and congrats on your purchase.

Most Cummins use fleetgaurd filters on there engines. Them first two letters on the filter part # is a good indicator to what they are.

LF- is a lube filter
FF- fuel filter
WS- water separator for fuel system
CF- coolant filter

You can go to fleetgaurds web site and cross reference the filters you have on there to double check.

2007 Fleetwood Revolution LE 40E, 400HP C9 Cat
2015 Ford F-150 Lariat Super Crew 4X4, Blue Ox Adventa LX and Patriot braking system
2012 Polaris Rzr 800 LE
Mjay is offline   Reply With Quote
Old 11-28-2013, 02:35 PM   #3
Senior Member
Fleetwood Owners Club
Freightliner Owners Club
Join Date: Sep 2012
Posts: 135

The Cummins ISB engines don't require a coolant filter. They don't have the counter-bores/sleeves/liners that the piston travels up and down in as the large block diesels do, so the coolant additive from a filter isn't needed nor do you need to check coolant for the additive. The purpose of the additive is to prevent cavitation of the liners which, if allowed to happen for any period of time will cause a leak through the lower seal and the fix is very costly.

Having said this though it is important that you keep your coolant system full and clean and flushed periodically to assure top performance.

As a side note you should also keep an eye on your CAC and radiator stack for accumulated oil/dirt build up from the engine blow-by as it will cause you and over heating condition.

Hope this has helped and have a Happy Thanksgiving.

Tom and Barb
2000 Bounder 39Z
tnrvers is offline   Reply With Quote
Old 11-28-2013, 03:55 PM   #4
Senior Member
BFlinn181's Avatar

Gulf Streamers Club
Join Date: Jan 2012
Location: Cincinnati
Posts: 17,905

If you go to the Cummins website with your engine serial number you can get all the information about your engine and download a manual too. Same for the Freightliner chassis,with your VIN number they can tell you all about the vehicle, from axles to shocks, air brakes, etc.

Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
BFlinn181 is offline   Reply With Quote
Old 11-28-2013, 06:19 PM   #5
Senior Member
aschuh53's Avatar
Ford Super Duty Owner
Join Date: May 2013
Posts: 1,126
welcome to irv2
aschuh53 is offline   Reply With Quote
Old 11-28-2013, 08:10 PM   #6
Senior Member
donhoward49's Avatar
National RV Owners Club
Workhorse Chassis Owner
Join Date: Aug 2010
Location: Portland, Oregon
Posts: 869
Also scroll down to "forum jump", check out Fleetwood owners and the Cummins forums..

2004 National Sea Breeze LX8375, Towing a 2012 Liberty.
donhoward49 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 02:59 AM.

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