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Old 09-27-2022, 12:01 AM   #1
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Oil dripping inside the rear of the coach

Please see attached pics. We are getting ready to go on our first long trip with our 2021 Super Star to race my Viper at Indianapolis Speedway, supposed to leave in 5 days. We just noticed oil dripping in through an electric box at the very back wall of the coach, dead center, inside the rear closet. There's wires that go in from the top and down through the bottom. The oil is leaking in from the top wires. This electric box is about chest high while standing in the coach next to it. So maybe 5 feet from the top of the coach. Any ideas? When opening the back hatch, you can't see anything. I'm assuming this is hydraulic oil.
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Old 09-27-2022, 06:15 AM   #2
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Looks like honey. How does it taste?
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Old 09-27-2022, 07:40 AM   #3
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Is it oily or sticky? You will need to call Newmar. They only build a couple of those a year. You don't have any hydraulics in that area. Contact your rep on the drivers window. Looks like a lubricant someone might have used pulling wires or something.
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Old 09-27-2022, 11:32 AM   #4
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Looks like honey. How does it taste?
It's definitely oil
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Old 09-28-2022, 05:50 AM   #5
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Not sure if there is an oil filled transformer in that area, it wouldn't have a large amount of oil in it or drip for a long time, but that may be something inside that box.. Newmar would have to answer that one..

Also, is that area right in front of your storage in your rear cap is??? do you happen to have motor oil stored in that area that could have leaked out?? I know it sounds weird, but if there are screw holes in that shelf going into that shared wall, it could travel across into that area and leak through if there is a large volume of oil..
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Old 09-28-2022, 09:42 AM   #6
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Also, is that area right in front of your storage in your rear cap is??? do you happen to have motor oil stored in that area that could have leaked out?? I know it sounds weird, but if there are screw holes in that shelf going into that shared wall, it could travel across into that area and leak through if there is a large volume of oil..
That's a good answer, but yeah that was the first thing I checked. I think this electrical box is higher than my top shelf anyway.

Thanks.
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Old 09-28-2022, 09:48 AM   #7
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Is it kitchen near the the stove exhaust vent?
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Old 09-30-2022, 10:59 PM   #8
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Just a wild guess - any chance it could be Hydronic heater fluid. Stuff is basically heavy antifreeze. Any heater lines close by ?
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Old 10-11-2022, 04:11 PM   #9
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J...any chance it could be Hydronic heater fluid. Stuff is basically heavy antifreeze...
Wrong color to be glycol.
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Old 10-12-2022, 09:12 AM   #10
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Could it be some kind of dielectric grease?
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Old 10-14-2022, 05:10 PM   #11
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That's your KIB Electronics control panel. All wiring going in and out is related to lighting, so it shouldn't come in contact with oily substances anywhere. The only possible active source of oil that high up is the rear AC and I don't know what color oil Dometic uses. It would likely not be enough to reach the KIB box, though.



My guess would be a wire lube (unlikely, I don't think Newmar needs it anywhere unless they forget a wire) or someone forgot a lubricant can in the wall during assembly.
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Old 10-14-2022, 05:54 PM   #12
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Just a guess but if their are any Capacitors around that panel that could be a source of clean lightweight oil.
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Old 10-14-2022, 06:06 PM   #13
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That’s a hydraulic leak from your slide.
They have connectors that can get loose, if you tighten them too much you can break it too.
Bring it to a good Newmar shop, I would recommend the factory service. Worth the trip.
You can do a trip and tour Elkhart while there. The RV Hall of Fame is a great place
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Old 10-17-2022, 02:34 PM   #14
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Slide is electric and not hydraulic on the Super Star... any update on the root cause of this Viper?
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