Welcome! Please use the navigational links to explore our website.
PartsASAP LogoCompany Logo (800) 853-2651

Shop Now

   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver

Attention Forum Users: On the 28th of December 2023 at 9:00am Central Time, we will be taking the forums down for maintenance while we prepare the new forums for your use. Please click here for more information.

Discussion Forum
:

Gray oil

Welcome Guest, Log in or Register
Author 
Dave

05-07-2003 17:54:51




Report to Moderator

I changed the oil on my JD40S last week and it was very gray looking what would cause this ND oil or water in the oil I put 30HD back in it is this ok? thanks




[Log in to Reply]   [No Email]
EJ

05-10-2003 11:47:22




Report to Moderator
 Re: Gray oil in reply to Dave, 05-07-2003 17:54:51  
A good way to tell if it is water is to let it stand for a few days and slowly loosen the oil drain plug so there is a slight drainage coming out. If there is water in the oil, the water will come out before the oil. If only oil comes out, you are OK. If water comes out - you have got other troubles.



[Log in to Reply]  [No Email]
Loren

05-08-2003 08:27:31




Report to Moderator
 Re: Gray oil in reply to Dave, 05-07-2003 17:54:51  
Here is a wild card for you. MANY years ago I worked as a VW mechanic (air cooled engines, of course). When people would bring in a car needing engine work, the first thing we would do is pull off the filler cap and look at the inside of it. If it was coated with thick, gray-brown sludge, we knew before we even asked what kind of oil they were using. It was always Standard Oil/Amoco. Having said that, I doubt if oil brand is your problem if all the oil drains out looking gray and murky. Sure sound like anti-freeze mixed in to me.

[Log in to Reply]  [No Email]
John T

05-07-2003 18:08:27




Report to Moderator
 Re: Gray oil in reply to Dave, 05-07-2003 17:54:51  
Hey Dave, A gray milky looking oil is usually a sign of the presence of water. Depending upon how much, it may be from condensation or rain got in orrrrr r worse things like leaky head gasket or a crack in the block or head. After the oil change and the old girl not left to sit out, keep an eye on the coolant level and if she grays again and the coolant goes down, you may have a problem, maybe a head re torque could help????

Is she runnign hot or loosign coolant???? Hot combustion gasses in the coolant heats her up fast and another tell tale sign to look for is the presence of a lot air bubbles rising to the top of the radiator, which is air and/or combustion gas escaping somewhere into the cooling system.

John T Nordhoff in Indiana

[Log in to Reply]  [No Email]
Wayne in Tn.

05-07-2003 18:04:53




Report to Moderator
 Re: Gray oil in reply to Dave, 05-07-2003 17:54:51  
Dave, gray or milky color oil means water in it. Could be a cracked head or block or head gasket. If it does not reappear after changing the oil, it might have been rain water entered the breather pipe. Check for loss of water in the radiator. Also check the water in the radiator for the presence of oil, if so, then there is a crack somewhere or a blown head gasket.



[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:


TRACTOR PARTS TRACTOR MANUALS
We sell tractor parts!  We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]

Home  |  Forums


Copyright © 1997-2023 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters

Website Accessibility Policy