Go Back   iRV2 Forums > MOTORHOME FORUMS > MH-General Discussions & Problems
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  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 03-22-2014, 07:30 PM   #1
Senior Member
 
cucotx's Avatar
 
Georgie Boy Owners Club
Join Date: Mar 2014
Posts: 384
Question Regen in Newmar Mountain Aire vs Entegra Cornerstone

I continue to get more familiar with the exhaust systems in DPs sold after the 2010 model year.

I keep reading that we need to know how regen happens in our engines, because if not done right, you could get a lot of engine oil contamination which destroys bearings and fuel injectors, etc. Especially if the oil is not changed often.

So, I wonder how the K2 and K3 Spartan and Freightliner chassis are handling regen? Which chassis is not doing it in a way that would be good to the long term health of a diesel engine?
__________________

__________________
cucotx 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 03-22-2014, 07:38 PM   #2
Senior Member
 
Chow5656's Avatar
 
Newmar Owners Club
Solo Rvers Club
Join Date: Jul 2012
Location: NEPA
Posts: 137
The chassis maker doesn't set the system up the engine maker does.
__________________

__________________
DSDP 4320 ISL 400
Chow5656 is offline   Reply With Quote
Old 03-22-2014, 07:43 PM   #3
Senior Member
 
cucotx's Avatar
 
Georgie Boy Owners Club
Join Date: Mar 2014
Posts: 384
Thanks Chow.

Do you know how Cummins takes care of regen with their engines?
__________________
cucotx is offline   Reply With Quote
Old 03-22-2014, 08:03 PM   #4
Senior Member
 
TBS-POPS's Avatar
 
Join Date: Nov 2013
Location: Valley Springs, Ca
Posts: 368
I would like to know where you are getting your info from because its totally false. The regen process is just the soot being burned out of the DPF when the computer senses that it is at a certain % of full. YOU don't have any control over it and all you have to do is drive. The process has nothing to do with oil contamination or affecting fuel injectors.

Just keep your def tank full and drive and have fun as normal!
__________________
2018 Vilano 375FL
2017 F-350 CC DRW 6.7
TBS-POPS is offline   Reply With Quote
Old 03-22-2014, 08:48 PM   #5
Senior Member
 
Chow5656's Avatar
 
Newmar Owners Club
Solo Rvers Club
Join Date: Jul 2012
Location: NEPA
Posts: 137
Quote:
Originally Posted by TBS-POPS View Post
I would like to know where you are getting your info from because its totally false. The regen process is just the soot being burned out of the DPF when the computer senses that it is at a certain % of full. YOU don't have any control over it and all you have to do is drive. The process has nothing to do with oil contamination or affecting fuel injectors.

Just keep your def tank full and drive and have fun as normal!
Actually the regen is usually set buy amount of time or miles on the engine. You are right it has nothing to do with injectors. The computer will let you know if something hasn't happened as it was suppose too.
__________________
DSDP 4320 ISL 400
Chow5656 is offline   Reply With Quote
Old 03-23-2014, 07:14 AM   #6
Senior Member
 
D Lindy's Avatar
 
Winnebago Owners Club
Join Date: Aug 2013
Posts: 1,635
We've only had our unit for 1 year, and the only way I know we've don a regen is that the level of the DEF tank has gone down. Ours is a Cummins ISL8.9 380hp. About 90% of our driving has been at highway speeds and it's my understanding the less highway speed the more you'll regen.
__________________
2012 Journey 40U (Our Incredible Journey)
2008 Dodge Dakota(TOAD) 2005 Honda Shadow in TOAD
AF-1 braking system
D Lindy is offline   Reply With Quote
Old 03-23-2014, 07:39 AM   #7
Senior Member
 
Join Date: Apr 2012
Posts: 186
The only thing I have heard about the regen system is to be careful not to overfill the crankcase oil as the oil will contaminate the canisters in the exhaust and that is very costly.
__________________
camper33 is offline   Reply With Quote
Old 03-23-2014, 08:03 AM   #8
Community Moderator
 
JMonroe's Avatar


 
Newmar Owners Club
Spartan Chassis
Join Date: Oct 2009
Location: Deer Creek RV and Golf Resort, Davenport FL
Posts: 6,854
The DEF system and particle filter are two different systems, designed for different purposes (to filter out different things). Your DEF usage has nothing to do with the particle filter, nor is it "timed". Sensors within the system tell a computer when it's time to do a "regen", which is simply injecting a bit fuel upstream to raise the temps within the filter to burn out contaminants.

A post within this linked thread contains one of the best explanations I've seen on the entire emissions system on our post 2010 equipment.

Emissions system explanation
__________________
Jay & Peggy Monroe with Dolly
Can't take it with you - don't plan on leaving any behind
2016 Newmar London Aire 4553, Spartan chassis
2017 GMC Acadia toad
JMonroe is online now   Reply With Quote
Old 03-23-2014, 08:13 AM   #9
Senior Member
 
Steve Ownby's Avatar
 
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,396
Quote:
Originally Posted by D Lindy View Post
We've only had our unit for 1 year, and the only way I know we've don a regen is that the level of the DEF tank has gone down. Ours is a Cummins ISL8.9 380hp. About 90% of our driving has been at highway speeds and it's my understanding the less highway speed the more you'll regen.
You are discussing two separate systems. The "regen cycle" is an automated burn off of accumulated particulates in the diesel particulate filter (DPF). It does this by injecting diesel fuel into the filter. The DEF tank supplies the catalyst to the system that reduces the NOX byproduct of combustion in the exhaust. The DPF system was mandated on engines starting in '07 and the DEF system on engines starting in '10. Both are part of the exhaust but are separate systems with very different goals.
__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
Steve Ownby is offline   Reply With Quote
Old 03-23-2014, 08:39 AM   #10
Senior Member
 
cucotx's Avatar
 
Georgie Boy Owners Club
Join Date: Mar 2014
Posts: 384
TBS-POPS,

I found this pretty good presentation on DPF Regeneration, see below.

The discussion on the issue with oil contamination starts at 18:45 in the video. It may not apply to the Cummins. I think it all depends on the regen process selected for each engine. I think he was explaining that some engines pump some of the exhaust back into the cylinder to burn off some of the soot, which contaminates the oil.

__________________
cucotx is offline   Reply With Quote
Old 03-23-2014, 08:50 AM   #11
Senior Member
 
DSL417's Avatar


 
Entegra Owners Club
Join Date: Sep 2012
Posts: 6,208
Blog Entries: 2
I have the K2 in the Entegra Anthem...never heard of the issue. Went to Spartan Owners course where everything about the chassis and engine maintenance and care were discussed for a week. We each received a personalized chassis and engine maintenance folder identifying care requirements. There were K3 chassis Cornerstone folks there as well as one K2 Dutch Star (2008) in the class. This topic was not mentioned at all in the class. If you have a question recommend you call Spartan or Cummins Customer Service.
__________________
Dave and Beth
2015 Cornerstone 45J
Ford F-150 and 2016 Polaris Razor
DSL417 is offline   Reply With Quote
Old 03-23-2014, 09:10 AM   #12
Senior Member
 
cucotx's Avatar
 
Georgie Boy Owners Club
Join Date: Mar 2014
Posts: 384
DSL417,

Do you remember in your Spartan class if they mentioned that the Cummins in the K2 and K3 chassis include a Bypass Filtration oil filter? I know Cummins has patents on bypass filters, but I don't know if 2010+ engines have them.
__________________
cucotx is offline   Reply With Quote
Old 03-23-2014, 09:21 AM   #13
Senior Member
 
Steve Ownby's Avatar
 
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,396
Quote:
Originally Posted by cucotx View Post
TBS-POPS, I found this pretty good presentation on DPF Regeneration, see below. The discussion on the issue with oil contamination starts at 18:45 in the video. It may not apply to the Cummins. I think it all depends on the regen process selected for each engine. I think he was explaining that some engines pump some of the exhaust back into the cylinder to burn off some of the soot, which contaminates the oil.
__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
Steve Ownby is offline   Reply With Quote
Old 03-23-2014, 09:31 AM   #14
Senior Member
 
Steve Ownby's Avatar
 
Join Date: Nov 2008
Location: Cosby, Tn
Posts: 6,396
Quote:
Originally Posted by cucotx View Post
DSL417, Do you remember in your Spartan class if they mentioned that the Cummins in the K2 and K3 chassis include a Bypass Filtration oil filter? I know Cummins has patents on bypass filters, but I don't know if 2010+ engines have them.
Bypass oil filter have been around for many years. I suspect what you are referring to is a standard oil filter line developed by Cummins. It is marketed as a full flow filter that also incorporated a bypass section which passes a small % of the oil through a finer filter. I don't remember all the details but if you go to the Fleetguard (Cummins filtration business) web site you can read about it.

If you post a question about this over on the Cummins forum, spike45 might respond. He just retired as a Fleetguard field engineer and really knows this stuff.
__________________

__________________
Steve Ownby
Full time since 2007
2003 Monaco Signature
Steve Ownby is offline   Reply With Quote
Reply

Tags
newmar



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
2002 Newmar Mountain Aire 1938rlh Newmar Owner's Forum 15 03-08-2014 02:30 PM
Information on a 2007 Newmar Mountain Aire 4528 dtttfred Newmar Owner's Forum 8 02-15-2014 02:37 PM
Entegra Cornerstone steering vs Newmar Comfort Drive RobertBC Entegra Owner's Forum 26 02-09-2014 02:57 PM
2002 Newmar Mountain aire 1938rlh Newmar Owner's Forum 3 11-09-2013 08:37 AM
Residential refer install questions '05 Newmar Mountain Aire Mrchips Newmar Owner's Forum 17 08-13-2013 09:40 AM

» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:02 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.