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ISBRAM's avatar
ISBRAM
Explorer
Jul 26, 2018

Thoughts on 2005/2006 Cummins ISM 500/ Allison 4000?

My wife and I are seriously considering the purchase of a nice used 2006 Newmar Essex pusher with very low millage. I’m not familiar with the Cummins ISM but living in Colorado I really want a combi...
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ISBRAM's avatar
ISBRAM
Explorer
Jul 26, 2018
SidecarFlip wrote:
Pull an oil sample and send it to Blackstone labs, do the trans as well. That will tell you (for 50 bucks) if you are looking at mechanical issues.


Thanks for the idea; I have an oil analyses lab a few miles from my home that I used several years ago. I may have to stop by and pick up a few sample kits.

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