Just serviced my 2003 kountry star 5.9 (cummins). put 5 gal of oil in and now it shows overfull, I THINK that's what I put in before. Maybe just having a senior moment? How much are the 5.9 owners using in there's. Thanks for any light that can be shed on this.tireman.

All the searches I did for the 5.9 cummins shows 12 quarts. I don't know if this is different for a MH with maybe a deeper pan.It also says some MH's have a 15 qt pan and some have a 17 qt pan.

The 5.9L Cummins in the Dodge Ram pickups take 12 qt(3.0 gal)Have no idea if that is increased when the motor is put into a motor homeMaybe it time to check you owners manual

Our 5.9 takes 14 quarts, but I believe it's dependent on pan size...be sure your dipstick is calibrated to the pan......check with Cummins for engine SN? IMHO

I buy 5 gals when I change the oil and filter. Use about 4.75 gals and my oil level shows at the bottom of the full mark on the dip stick.

Is the 5.9 cummins in the m/h the same engine as the one they use in the pickups. I have been told that they were different in the m/h.tireman.

To much oil??? | Good Sam Community

2ndhom
Explorer
Jul 30, 2013
In this case call the mfg'r, give them the s/n and have them tell you ............ "the amount".
dogvetia
Explorer
Jul 31, 2013
15 qts here anymore it will blow out slobbertube shows one qt low on dip stick but this was in accordance with cummins tom
wny_pat1
Explorer
Jul 31, 2013
Do what Wolfe10 told you to do. Call Cummins Customer Care and give them your engine number. They will tell you exactly how much oil your engine holds! They will tell you what size oil pan you have too! The 5.9 had several different sizes of oil pans. All you need to do is look at the variety of answers you got here, and that is enough to tell you to go to the manufacturer!!! 800-343-7357

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