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Old 05-08-2016, 07:50 PM   #1
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Oil Change in a 2015 Seneca

Has anyone out there changed the oil in their Seneca? This is our first diesel and I have never changed oil in a diesel and was wondering how difficult it is compared to changing the oil in our previous gas powered motorhome which had the ford v-10. Thanks
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Old 05-08-2016, 09:41 PM   #2
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Changing it on my former Ford V-10-equipped motorhome was somewhat easier due to easier access to the oil filter on the Ford. The filter on the Cummins is located on the passenger side of the engine and oil has a lot further to fall and splatters all over when the container is on the ground! Next time I will cover a much larger area with old newspapers! I also had to buy a larger drain pan due to the large oil capacity, but I knew that going in. I got a Hopkins 24 quart pan from Amazon. Mine took 18 quarts of Rotella to refill it right to the "full" line.

Be advised Cummins also recommends fuel filter changes at the same time you do the oil. And there are two, the primary and the secondary. Both located on the driver's side of the engine. Also a messy proposition!

I will change them again myself, next time I won't be so messy.
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Old 05-09-2016, 02:17 AM   #3
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Thank you. Sounds like a bit of a bigger job but in the long run will save some money.
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Old 05-09-2016, 05:06 AM   #4
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I changed all of my filters in the driveway, but left the oil change to the local oil change experts that have a drive through large enough for RV's. I supplied the filter. As was mentioned, it was a task getting to the oil filter...and messy.
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Old 05-10-2016, 09:54 AM   #5
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My 2006 Seneca is a different drivetrain and chassis, but still a diesel. Diesel oil is usually much much blacker with soot and carbon than oil from a gasser, and it stinks. But the biggest thing is the volume! Took 14 quarts to do the whole job, and I also used Rotella T6. Got a few drips on the driveway, so I'll dedicate a dropcloth to future oil changes and service work. I just put it on the jacks and slid a 5 gallon Home Depot bucket underneath. Works like a champ, and I just put the lid on it and delivered it to the local Auto Zone for reclaiming. Changed the filter while I was at it. Seemed like a waste not to do that for the extra 10 or 12 bucks anyway.
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Old 05-10-2016, 11:00 AM   #6
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As a Cummings owner in my truck, the oil change is not that difficult. As stated, the amount and quality of the oil is different than a gasser but the steps are the same. One thing I will caution strongly, DO NOT use Fram oil filters or other aftermarket oil filters. Stick with Fleetguard, Mopar or Freightliner brand filters. Fram filters especially, have caused multiple engine failures. They do not hold up and come apart. I have links to these if someone feels the need for them. I do use Fram on other vehicles I have own and have owned without problems but they dropped the ball when it came to the Cummins.
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Old 05-10-2016, 05:26 PM   #7
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Quote:
Originally Posted by Wertles View Post
As a Cummings owner in my truck, the oil change is not that difficult. As stated, the amount and quality of the oil is different than a gasser but the steps are the same. One thing I will caution strongly, DO NOT use Fram oil filters or other aftermarket oil filters. Stick with Fleetguard, Mopar or Freightliner brand filters. Fram filters especially, have caused multiple engine failures. They do not hold up and come apart. I have links to these if someone feels the need for them. I do use Fram on other vehicles I have own and have owned without problems but they dropped the ball when it came to the Cummins.
Good insider information to know. On my Duramax, I ended up with a Mobil 1 filter, as it came highly recommended by some in the Kodiak/Duramax/Allison forum I joined. Not necessarily the same case with a Cummins, as you and the OP are using. I am also considering a 2 micron fuel filter for my chassis, as today's injectors are operating at such high pressures, it has now become critical to protect them to avoid costly premature repairs. I lived with a first-generation Duramax for 13 years in a pickup truck I recently sold, and I am convinced I avoided much more costly maintenance as a result. I have also learned that the Duramax is not overly picky about what oil is used, as long as it is good quality diesel-specific motor oil. I ended up choosing the Rotella T6 synthetic, which most seemingly-knowledgeable folks recommended, along with the Mobil 1 filter. Don't know if that's the case with Cummins, but that's a hell of a good engine you guys have there. Pays to protect it.
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Old 05-11-2016, 08:08 AM   #8
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You will probably need a bigger oil pan for the cummins that you did for the V10
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Old 05-20-2016, 12:19 PM   #9
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I use a plastic shopping bag or a large zip lock back to slide over the oil/fuel filters to avoid the spillage. I have both the Cummins ISB and the Duramax diesels.

I've always used the best filter available, save $5-10 to pay BIG $$ because the filter failed?
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Old 05-20-2016, 07:35 PM   #10
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Quote:
Originally Posted by Cactusogre View Post
I use a plastic shopping bag or a large zip lock back to slide over the oil/fuel filters to avoid the spillage. I have both the Cummins ISB and the Duramax diesels.

I've always used the best filter available, save $5-10 to pay BIG $$ because the filter failed?
What a simple yet effective solution to much of the mess! I will use it next change for sure. And I agree, a cheap filter is no bargain.

Thanks!
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