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Old 08-04-2015, 11:40 AM   #1
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Oil change on cummins 8.3

How many miles should you safely drive between oil changes on my 8.3 cummins
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Old 08-04-2015, 11:44 AM   #2
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I would refer to the manual and get the oil tested.
I would recommend every diesel owner having the fluids tested. Not so much to extend life but to catch an expensive problem sooner.
The oil test provides good information on the health of the engine and oil.
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Old 08-04-2015, 05:05 PM   #3
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Old 08-04-2015, 05:20 PM   #4
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Cummins suggests annually regardless of mileage. One day I'll sell my coach and proper maintenance can make a difference on how much money you recover. So, I have mine done annually.
Others go by oil analysis. Rarely do RVers put enough miles in a short enough time period to just go by the recommended milage interval.
This will be interesting to see how others handle there oil changes.
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Old 08-04-2015, 05:36 PM   #5
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Welcome to IRV2! We're sure glad you joined us!

One year or 15,000 miles, whichever comes first!

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Old 08-04-2015, 07:02 PM   #6
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I change engine and generator oil and filters annually. I also change fuel filters annually.

I change coolant, coolant filter, air filter, air dryer dessicant filter, belts, every second year.

I mark each item with permanent marker when I install it, so it's easy to keep track of what I need to do.

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Old 08-06-2015, 08:22 AM   #7
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Welcome, glad to meet you!

The manufacturer generally states 15,000 miles, but a better timeframe is every 1 year or 15,000 miles since few RVers drive 15,000 miles per year.
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Old 08-07-2015, 02:48 PM   #8
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Originally Posted by Momaco94 View Post
How many miles should you safely drive between oil changes on my 8.3 cummins
I change mine every November.....which can be from 13,000 miles to 18,000 miles...do all the filters,oil and grease
the air filter and air filter for brakes every 3 years
have them check the belts, the anti-fresse yearly
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