| 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: 31 Oct 2025 at 3:41pm
 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
 
 
        
          | What weight of oil should I use for my HD11 engine in the winter? |  
 
 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. 
 -------------
 Life lesson: If you’re being chased by a lion, you’re on a horse, to the left of you is a giraffe and on the right is a unicorn, what do you do? You stop drinking and get off the carousel.
 
 |  
 Posted By: Ages Cat
 Date Posted: 01 Dec 2010 at 4:38pm
 
 
        
          | 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. |  
 Posted By: Gary in da UP
 Date Posted: 01 Dec 2010 at 5:26pm
 
 
        
          | 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. |  
 
 |