L P gas powered generator
Printed From: Unofficial Allis
Category: Other Topics
Forum Name: Shops, Barns, Varmints, and Trucks
Forum Description: anything you want to talk about except politics
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=168842
Printed Date: 29 Aug 2025 at 9:01am
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Topic: L P gas powered generator
Posted By: HD6GTOM
Subject: L P gas powered generator
Date Posted: 04 Mar 2020 at 5:11pm
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I want to change oil in the generator, ONAN 5500, on her dang trailer. The data plate says sae 30 or 10wx30 or 15wx40. Back in the 70/80's when I was in the oil business all lp powered equipment used low Ash motor oil. It doesn't say anything about this on the data plate. All I can find on the ONAN page is diesel or gasoline. Anyone know for sure? Thank you.
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Replies:
Posted By: steve(ill)
Date Posted: 04 Mar 2020 at 5:33pm
Chevron Supreme ISOCLEAN® Certified Lubricant SAE 10W-30 is a premium automotive motor oil that protects against deposit and sludge formation and provides excellent wear protection to critical engine parts. ... A low ash, dispersant/detergent type oil for natural gas applications.
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Like them all, but love the "B"s.
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Posted By: steve(ill)
Date Posted: 04 Mar 2020 at 5:53pm
I clicked on SHELL ROTELLA and it makes no difference if you pick 10w30 or 15w40 ... almost EVERYTHING is Low Ash these days.
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Like them all, but love the "B"s.
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Posted By: john(MI)
Date Posted: 04 Mar 2020 at 6:01pm
I'd choose the heavier oil, it's gonna be run in summer heat!
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D14, D17, 5020, 612H, CASE 446
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Posted By: klinemar
Date Posted: 04 Mar 2020 at 7:01pm
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Affirmative on Shell Rotella being low cash. Friend had a 930 Case LP and he used Rotella oil. He called it his "Camper Special"!
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Posted By: shameless dude
Date Posted: 04 Mar 2020 at 11:31pm
Posted By: HD6GTOM
Date Posted: 04 Mar 2020 at 11:36pm
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Thanks guys it's nice to have you guys to depend on.
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Posted By: DMiller
Date Posted: 05 Mar 2020 at 7:42am
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Ash was a lubrication additive that tended to precipitate out, was in a lot of older oils but reformulations have pretty well done away with it.
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