HD11 OIL
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Construction and other equipment
Forum Description: everything else with orange (or yellow) paint
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=21601
Printed Date: 19 Jul 2025 at 10:13pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: HD11 OIL
Posted By: Argo2
Subject: HD11 OIL
Date Posted: 30 Nov 2010 at 10:05pm
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What weight of oil should I use for my HD11 engine in the winter?
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Replies:
Posted By: Coke-in-MN
Date Posted: 30 Nov 2010 at 10:57pm
Depending on your location and how cold it gets. If you have heaters on it or just setting out. I use Rotella 15/40 in just about all equipment year round.
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Posted By: Ages Cat
Date Posted: 01 Dec 2010 at 4:38pm
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An article recently published in the "Equipment Today" magazine (October, page 28) talked about diesel oils in cold temperatures. They state that 10W30 oils will lower starting temperatures 15-20 degree F vs 15W40. I use 15W40 in the crawlers, Bobcat, etc., however thick lubricants do not work well with piston engines in the winter time. Learned that from operating Pratt & Whittney radial engines in the winter. Cold, thick oil is a killer for any engine in the cold.
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Posted By: Gary in da UP
Date Posted: 01 Dec 2010 at 5:26pm
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I used 15-40 Mobil Delvac in my Powerstroke and 4150 Kubota for a couple of years and after asking my jobber about lighter oil , he said yea, we can get Delvac 10-30, so thats what I use year round. Makes a tremendous differance in cold weather starting, if I towed heavy loads in 100 degree heat I'd use 15-40 but I see no temps like that here. Maybe in Tejas.
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