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hertfordnc's avatar
hertfordnc
Explorer
Nov 07, 2019

Cummins 5 year old synthetic oil with 1000 miles - change ?

Asking for a friend, (really) He has a 36 foot HR with a Cummins. He's broke and this is his primary residence. Other than switching campgrounds seasonally and pumping tanks he has no miles on the o...
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4x4ord's avatar
4x4ord
Explorer III
Nov 09, 2019
I have an old 1975 diesel tractor that gets oil changes every 5 years or so. Ive had it since new and with over 10,000 hours on it, it still runs like new.

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