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Old 11-09-2018, 08:01 AM   #1
Alpine Owners Club
Nor'easters Club
Join Date: Nov 2015
Posts: 77
ISL oil change

Ok Iím trying to save some money by doing my own oil change, but I have not done it on a Diesel engine.. need some advice ..
I have an 8.9 Cummins ISL

Thank you for your help
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Old 11-09-2018, 08:16 AM   #2
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#1....get a six point socket! Drain is torqued to 65+ slip and your plug is rounded.

Buy a good metal band filter wrench.

Now it's all pretty much the same as a car, just more oil.

ALWAYS...properly support an air bag chassis before going under to work!!!
Happy Trails,
06 Dynasty Countess III ISL//3060
07 Hummer H3
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Old 11-09-2018, 10:11 AM   #3
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Kind'a what he said--a bit like changing oil in a car. Help us help you by including year and model type of your Alpine. Looking at your profile, I see you have a 2009 Alpine--one of the last models made. ISL usually holds 28 qrts but I prefer to run at 26 qrts; any brand of 15w40 spec-ed for diesel will work--don't see a reason to use synthetic; you have one oil filter, which you pre-charge with new oil [put plastic wrapper over opening of filter until you get it in place]; fill from opening on timing chain cover; you have two fuel filters--one on engine and one on frame of back compartment--some pre-charge fuel filters, some don't but does require special engine restart procedures. 17mm oil plug--be careful not round corners. Change yr Onan genset oil/filter at same time--prefer to do annually.....good luck
Old Scout
2015 IH45 Foretravel
2003 Alpine 40' MDTS [Sold]
New Braunfels, Texas
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Old 11-09-2018, 12:19 PM   #4
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26 qts. of dirty black oil is a lot! Once you get the plug out, you're on for the ride. I used a big plastic storage bin. they are shallow enough (about a foot deep) to easily get under the oil pan, and large enough to hold all the oil.
But here's something easier; buy an oil pan drain plug/valve. Google it.. they're purpose-made, and they make oil changes a snap. Get enough containers, fill them and shut off the flow between containers, easy and no mess. Also your oil filter will probably be hard to get a filter wrench on so you can swing it. Get one of those end cap filter wrenches that is set up for a rachet wrench. then you can work from the end instead of the side of the filter. Just keep the filter tool and use it over and over.
Dudley do-right, '06Apex 40MDTS.
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Old 11-09-2018, 01:07 PM   #5
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As others mentioned. Same as a car just bigger and more. Prefil oil filter and I do recommend a band type filter remover that you can use with an extension and ratchet.
2002 American Eagle 40M
ISL400 / Spartan MM
2003 Jeep Liberty/2019 Jeep Trailhawk
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Old 11-18-2018, 12:40 AM   #6
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I’d look for another way to save a few bucks!��
That is one messy job.
Dan and Patty
"04" Alpine 34' FDDS 2018 Jeep Grand Cherokee
Newcastle, CA
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Old 11-18-2018, 06:49 AM   #7
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….can see the advantages of using an after-market valve to change oil.....however, don't like how vulnerable the bottom area of the oil pan is to striking the ground--have seen lots of pans with scrapes and dents....a valve would be pretty exposed. Probably less of an issue but like dumping the black water tank, I prefer the idea of a rapid drain event to help remove any debris in bottom of pan?????
PS--breaking oil filter loose can be a challenge--I modified a 1/2 inch ratchet-driven strap wrench to use heavy duty cargo strapping--works great.
Old Scout
2015 IH45 Foretravel
2003 Alpine 40' MDTS [Sold]
New Braunfels, Texas
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Old 11-18-2018, 07:03 AM   #8
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I was intimated at first by the size of diesel capacity and size. Not any more. A Fumoto valve reduces the mess. A rubber strap wrench works fine on the filter. I use 2 5gal Home Depot buckets to transport used oil. Walmart 15w-40 has the diesel certified oil. <$10 on sale per gal. I buy filter on Ebay <$30. Total job $100.
Full Timers.
2015 Fleetwood Discovery 40E on a Freightliner XCS chassis with a Cummins ISL9 pulling 1 and/or 2 motorcycles, '07 Honda Accord OR a 17' Runabout Boat.
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Old 11-18-2018, 07:20 AM   #9
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Just so your aware that those oil drain valves can and have come open and drain your oil out going down the road or parked. Hasn’t happened a lot but it has.
But they sure are nice to have at oil change.
Good luck
2014 Fleetwood Providence 42p
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