RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Monaco Owner's Forum
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 04-27-2011, 12:21 PM   #1
Senior Member
Join Date: Jan 2011
Location: Canada
Posts: 197
coolant additives

I know this topic has been beaten to death but I still don't get it. I am getting ready to change out my anti-freeze myself. My manual for a 400 cummins ISL states to use a anti-freeze with the additives ready mixed in. I phoned around and I can find extended life as well as regular anti-freeze but have to add in the additives seperatly. How do you use the test strips and how to alter the ratio if required? Or should I just suck it up and buy the additive already added antifreeze. Our local dealer has the extended life as well as regular anti-freeze on sale now but not sure which way to go..Do I still have to test the coolant with test strips all the time??

Can someone please explain this to me as I have read all the archieves on this topic but I still don't understand this procedure. I have not purchased any anti-freeze yet until I hear from you out there.

This is my first pusher diesel so please bear with me on my questions. I know gas engines but not diesels.

Ted and Kathy Mckay
2005 Holiday Rambler Sceptre 38 PDQ.400 cummins..... Tag #...RLN-TRD
TEDDE 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 04-27-2011, 12:54 PM   #2
Senior Member
Join Date: Jul 2000
Posts: 3,010
Go to this thread and read my post with the links
http://www.irv2.com/forums/f115/cool...ter-90249.html If you are planning on doing this yourself you must be able to drain the heater system. There are some valves that have to be opened. Where do you plan on dumping your AF? That is a lot of coolant. I would definitely go with the fully formulated long life or the OAT. You can buy these products at Cummins, KW or any other HD truck dealer. KW always have specials. NAPA is overpriced on HD truck stuff.

2008 Dynasty 42' Diamond IV
1988 Bluebird PT38
2009 Silverado Toad
moisheh is offline   Reply With Quote
Old 04-27-2011, 12:57 PM   #3
Registered User
Join Date: Mar 2011
Posts: 1,943
Go with Shell ELC and do away with the filters with additive in it. 300,000 miles and you don't have to touch it.
Perry White is offline   Reply With Quote
Old 04-28-2011, 06:10 AM   #4
Senior Member
hardy1000's Avatar
Monaco Owners Club
Join Date: Feb 2009
Posts: 1,471
I did mine last year and used Fleetguard ES Optimax from Cummins. It is good for 600 K miles and after 36 months you just add a bottle of charger and your good. I flushed the system (dont forget to run the heater also) and added 1 gallon of 100% and topped it off with 50-50 mix. I realize that I will never come close to 600,000 miles but I just went for the best I could find and this was it in my opinion. Make sure you use distilled water.
Attached Files
File Type: pdf ESOptimaxEG.pdf (119.7 KB, 32 views)
Del & Lori 2007 Diplomat 40PDQ - 2009 Jeep Wrangler Rubicon, M&G brake system, Rockhard bumper, Blue Ox.
hardy1000 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
DIM Oil, Coolant, Filter change - ISC350 brotenc Cummins Engines 21 05-25-2011 11:59 PM
How The Motorhome Coolant Overflow Reservoir Works DriVer Workhorse and Chevrolet Chassis Motorhome Forum 0 08-27-2009 12:17 PM
Spartan Coolant Issue Ecker Newmar Owner's Forum 2 05-27-2008 03:25 PM
ISB Coolant Change chasfm11 MH-General Discussions & Problems 14 05-18-2008 06:23 AM

» Featured Campgrounds

Reviews provided by

All times are GMT -6. The time now is 12:16 AM.

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