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03-20-2018, 04:14 PM
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#1
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Senior Member
Join Date: Sep 2004
Posts: 1,831
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DEF filter change interval?
What is the suggested change interval for the DEF filter?
__________________
2022 New Aire 3545
Huey Pilot — Vietnam 1971-72
Author of: ACE, The Story of Lt. Col. Ace Cozzalio
and: The Aviators: Stories of Helicopter Combat in Vietnam 1971-72
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03-20-2018, 04:23 PM
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#2
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Senior Member
Monaco Owners Club Newmar Owners Club Texas Boomers Club Spartan Chassis
Join Date: Jan 2010
Location: New Braunfels, Texas
Posts: 1,308
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At the Spartan seminar I attended, they suggested three years. But the said it’s probably more important that you carry a spare, since a filter can go bad quickly if you get some bad DEF.
All the filters are the same. I just picked up a spare at the FMCA Rally in Perry, GA.
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Dan & Linda
FMCA 399045 NKK 22240
2020 Dutch Star 4081 - Spartan K2
2017 Dutch Star 4018 - Sold - Towing Jeep Grand Cherokee Trailhawk
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03-21-2018, 07:14 AM
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#3
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Senior Member
Join Date: Nov 2007
Location: Charleston, WV
Posts: 3,467
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Quote:
Originally Posted by LK23
What is the suggested change interval for the DEF filter?
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It is 200,000 miles, so you will never need to replace it unless you get bad DEF.
https://cumminsfiltration.com/sites/...es/MB10033.pdf
__________________
John and Mary Knight
2015 Newmar Ventana 4311 - wheelchair accessible
2015 Cadillac SRX Luxury AWD
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03-21-2018, 03:48 PM
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#4
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"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 23,931
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I changed mine at four years. Here is the post I did on changing it. It's probably one of the last filters you have to worry about changing, but I wanted to know how to do it and I carry a spare.
http://www.irv2.com/forums/f103/how-...er-349839.html
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Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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03-21-2018, 04:48 PM
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#5
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Senior Member
Join Date: Nov 2007
Location: Charleston, WV
Posts: 3,467
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Quote:
Originally Posted by Dutch Star Don
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Don, I have the Bosch filter ($37 from Amazon) just in case, but like you I am trying to work out how to change the air cleaner dessicant. Did you find a way to do that yourself?
__________________
John and Mary Knight
2015 Newmar Ventana 4311 - wheelchair accessible
2015 Cadillac SRX Luxury AWD
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03-22-2018, 12:10 PM
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#6
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"Formerly Diplomat Don"
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 23,931
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Had planned on doing it this week, but we've had a week of rain, pouring right now. As many know, California is always bone dry, but we've had several good storms over the last 10 days. Looking for clearing next week. I'll try and document the air dryer service.
__________________
Don & Mary
2019 Newmar Dutch Star 4018 (Freightliner)
2019 Ford Raptor
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03-22-2018, 12:20 PM
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#7
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Senior Member
Join Date: Oct 2012
Posts: 1,106
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Mike Cody, the training guru at FL, told the class 200K intervals with no time limit. He said he got that info directly from Cummins.
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2021 Newmar Ventana 3717 with 2019 Ford Ranger toad
Full timing since 2016
My life goal is to be as smart as the others on this forum.
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03-22-2018, 12:46 PM
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#8
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Senior Member
Join Date: Nov 2007
Location: Charleston, WV
Posts: 3,467
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Quote:
Originally Posted by Dutch Star Don
Had planned on doing it this week, but we've had a week of rain, pouring right now. As many know, California is always bone dry, but we've had several good storms over the last 10 days. Looking for clearing next week. I'll try and document the air dryer service.
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We just had another round of snow so I won't be doing mine until the summer.
__________________
John and Mary Knight
2015 Newmar Ventana 4311 - wheelchair accessible
2015 Cadillac SRX Luxury AWD
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