changing the oil
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=49559
Printed Date: 22 Aug 2025 at 6:22pm Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: changing the oil
Posted By: MFOSTER54
Subject: changing the oil
Date Posted: 24 Apr 2012 at 9:43pm
When I picked up my CA from a Auction site, I noticed that the oil cap was missing----I had the telephone number of the seller and asked why it was missing, he said it did not have one----it had rained a couple of days prior to the auction and I decided not to crank the CA----I have drained the oil from the oil pan---rainwater had entered the tractor from the missing oil cap----I have used some cheap oil and rinsed the oil tube and oil pan by using air pressure to push the cheap oil to purge the rain water. My question is what oil would a person use for a tractor that has some good amount of wear and hours on it? I have a oil cap from another CA to prevent rain from falling in the oil tube.
------------- IF I WAS ANY BETTER I'D BE TWINS.
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Replies:
Posted By: David G.
Date Posted: 24 Apr 2012 at 11:28pm
It's hard to beat Rotella 15w-40 for any type of scenario.
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Posted By: Josh Day
Date Posted: 25 Apr 2012 at 6:11am
I use shell SAE 30 in all of my tractors. (unless diff in manual)
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Posted By: MFOSTER54
Date Posted: 25 Apr 2012 at 8:38pm
Went to Wal-Mart and they did not have a bit of 15-40 Rotella---got to thinking about when I was a young squirt---and Grandpa said the thicker the oil the better it is----was Grandpa wrong with a fickle Allis Chalmer Ca?
------------- IF I WAS ANY BETTER I'D BE TWINS.
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Posted By: JimD
Date Posted: 25 Apr 2012 at 8:54pm
I also use Rotella. I buy mine at farm supply, but autozone and orielly's also carry it. No, thicker is not always better. 15-40 is a nice blend and worth finding. Most 10-40 or 15-40 will be fine, the tractor isn't picky, but since it lasts so long, a little extra expense really isn't a big deal. JimD
------------- Owner of http://www.OKtractor.com" rel="nofollow - OKtractor.com PM for an instant response on parts. Open M-F 9-6 Central.
We have new and used parts. 877-378-6543
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Posted By: 427435
Date Posted: 25 Apr 2012 at 10:35pm
Even in Alabama, a 15w-30 or 15w-40 oil provides quicker lube to the bearings and camshaft than a straight weight 30 oil will. That is a good thing.
------------- Mark
B10 Allis, 917 Allis, 7116 Simplicity, 7790 Simplicity Diesel, GTH-L Simplicity
Ignorance is curable-----stupidity is not.
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Posted By: SHAMELESS
Date Posted: 26 Apr 2012 at 12:15am
i use rotella in everything except the 180D, i use 30 wt in it! was told by an old AC man to do that...so i always have!
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Posted By: SHAMELESS
Date Posted: 26 Apr 2012 at 12:20am
if you want to clean out the inside of the motor....dunno if that old of tractor has a oil filter or not...if it does, buy 2 new filters. take old one off, put a new one on, drain old oil, fill crankcase with #2 diesel fuel, start tractor, DON'T REV IT UP! just let sit at low idle for about 2-3 mins. shut down, drain again, replace oil filter, let drip an hour or so, replace with new oil! when you dump that diesel fuel out, you won't believe the junk that will come out with it!
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Posted By: DaveKamp
Date Posted: 26 Apr 2012 at 1:55pm
I wouldn't recommend RUNNING it with nothing but straight diesel. Putting a bit in the oil as a solvent to break up the crud, perhaps, but running it straight is rapidly approaching zero viscosity. Worse yet, it's loosening up crud and pushing it through the system, which is a treatment much worse than the affliction.
If there's that much crud in the pan, drop the danged pan and scrub it out.
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Posted By: pineyjd
Date Posted: 26 Apr 2012 at 5:17pm
I use Restore,it comes in silver can mix with 10-40 oil for my 1962 I40/D!0,tractor holds 15 lbs oil pressure,made a difference when I put it in.
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Posted By: Ages Cat
Date Posted: 26 Apr 2012 at 6:18pm
Bear in mind that due to condensation, a certain amount of water is in all crankcases. We have used Texaco Ursa in our Caterpillar engines and also used it on the farm for the other JD and IH diesels. Texaco and Shell motor oils are top notch lubricants. We have also used both brands extensively in both opposed and radial aircraft engines. When engines which used these oils were torn down, you would find clean sludge free internal engine components.
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