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Old 08-04-2012, 09:36 PM   #1
Beowulf2's Avatar
Join Date: Nov 2011
Location: Brighton, CO
Posts: 72
Air Filter Life Cycle

We are the second owners of a 2005 Kountry Star 39' diesel pusher with a Cummins ISC 330HP engine on a Spartan chassis.

The motorhome was purchase in Oct 2011. All of the original manuals seemed to be there but there were no maintence or service records.

There for the engine oil was changed, all of the Baldwin, oil, fuel, and water seperator filters were replace with Fleetguard Filters. The air dryer filter was replace, there was no moisture in the tanks or dryer. The antifreeze SCA's were checked and adjusted.

The generator was serviced, the chassis lubricated, front hubs checked along with other components.

All of the above services were performed before a 4000 mile round trip from Colorado to Florida this past May. In addition to some local trips there was one trip west on I70 which has 6 & 7% grades reaching an altiude of 11'000 ft. Discounting my inexperience of drive a diesel with mountain grades and altiude the motorhome performed very well. It was also towing a 2003 Silverado 2x4 about 5,500 lbs.

The engine air filter was not changed during the spring maintenace becuase the filter service guage was reading 15%. Additionly since the Fleetguard filters had been replaced with Baldwin filters the air filter had probably been replaced (wrong).

I just finished replacing the Ecolit air filter with a Baldwin filter. When I checked the Ecolit label, label could not be read when the filter was installed, the Ecolit mfg date was 9/15/2004. Making the old filter 7 years 10 months old with 40,000 miles. The filter guage was reading 15 to 18%.

There was no deteriation of the internal filter material it was still firmly mounted in the shell and nothing coming apart. The inlet side was black but the outlet side was still white.

After examining the old filter and how long it was in service it might not be necessary to replace the air filter every two years depending upon the driving conditions.

I will replace the air filter indicator guage.

Other comments,
1. Newmar parts they have been great. I have can and left a message which generaly they call back the same day. However, if Newmar is called early in the morning their time I can get the parts department. You must had you vin # or the unit serial #.

2. The lighted plastic outside assist handle broke. The plastic handle is not available but they have a stainless steel replacement. Newmar replaced the handle at no charge. I did have to do some filling and cutting of the replacement to make it fit.

2005 KSDP ISC 8.3 330HP
Pulling 2010 Silverado with drive shaft disconnect
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Old 08-05-2012, 06:55 AM   #2
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Location: Almond, Wisconsin
Posts: 1,442
Replaced my filter a couple weeks ago. My ECO-filter outlet rubber cracked, replaced it with a NAPA filter, can't see the # but there was a post on iRV2 that listed all the filters that fit. On the road and don't have the receipt to get the #, I'll see if I can get it when I get home. Good luck. Jim

2002 Newmar Dutch Star DP3569 330 CAT - Toad Jeep Liberty, DW is the Nagivator. Work to travel and everything revolves around the price of diesel.
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Old 08-05-2012, 07:07 AM   #3
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If it is possible 7 years old then change it and start fresh better be safe than sorry over a filter.
2007 Fleetwood Revolution LE 40V
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Old 08-05-2012, 07:19 AM   #4
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Originally Posted by Tha_Rooster View Post
If it is possible 7 years old then change it and start fresh better be safe than sorry over a filter.
See paragraph #7... He DID change it.
Hal & Ginny Miller '04 Beaver Santiam PRT40
'04 Saturn Vue - US Gear Brake - Blue Ox tow
4 "girls" (3 Irish Setters - Retriever)
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