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Subject: 90 WT Mineral Oil

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mthomas    Posted 03-28-2018 at 08:57:40 [URL] [DELETE]        [Reply] [Email]  
  • 90 WT Mineral Oil
  • Other than dealerships, where could I expect to find 20 quarts of this?

    Gaspump    Posted 03-28-2018 at 14:57:41 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 90 WT Mineral Oil
  • Hokie is correct, why look for and pay extra for an inferior product? GL-1 was simply an alternate to the original Mild EP that is the spec for N tractors from the beginning. If you just happened to be around during WWII you would realize how difficult it was to get most any of the lubes or fuels. Also found in N war era specs in addition to SMO you will find 50W motor oil for the hyd and gears. After the war all N's had only Mild EP specified.

    Andy B (MI)    Posted 03-28-2018 at 10:03:37 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 90 WT Mineral Oil
  • I use the cheap 303 from TSC in my N's. It might not be factory specs or whatever but so far its worked fine for me. On very cold days here in mid MI the 90 WT oil seemed too thick when i tried it. hth

    steveVa    Posted 03-28-2018 at 10:02:35 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 90 WT Mineral Oil
  • Look to the GL-1 post. 4 items down on this page...

    mthomas    Posted 03-28-2018 at 10:21:38 [URL] [DELETE]        [Reply] [Email]  
  • Re: 90 WT Mineral Oil
  • How did I miss tha? No TS locally, so I will try NAPA.

    TheOldHokie    Posted 03-28-2018 at 09:25:01 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 90 WT Mineral Oil
  • I doubt you will find it at dealerships since they don't recommend it. Try TS and NAPA.

    TOH

    mthomas    Posted 03-28-2018 at 09:47:26 [URL] [DELETE]        [Reply] [Email]  
  • Re: 90 WT Mineral Oil
  • In my travels, I see N's at tractor dealerships. Possibly they are in for repair or are trade ins. I presume they service them. If they do not recommend the use of mineral oil in the rear of an N, is it because there is a better alternative?

    TheOldHokie    Posted 03-28-2018 at 12:06:24 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 90 WT Mineral Oil
  • The only place I have ever seen the recommendation for "pure mineral oil" is in early Ferguson 9N manuals. I don't know exactly what message he was trying to convey but he was a knowledgable engineer and it surely wasn't a warning to avoid EP gear oils. More likely a caution to horse farmers not to use vegetable oils.

    In any event the Ford 8N manual recommended "mild EP gear oil" SAE 80 in the winter and SAE 90 in the summer. By the late fifties/early sixties they updated that to recommend their new multi-purpose oil (M2C-134x specification) for year round use. In today's world that would be any good SAE 80W90 GL4/5 gear oil or a universal tractor transmission fluid (e.g. M2C-134D). You can use GL1 oil if you like but it falls well short of either of them in terms of wear protection and all season viscosity performance.

    TOH

    Bruce (VA)    Posted 03-28-2018 at 11:19:57 [URL] [DELETE]        [Reply] [Email]  
  • Re: 90 WT Mineral Oil
  • Yes.

    Short answer, use UTF.

    Long answer............the owner’s manual was written in the early 1950’s. Just like with engine oil, much has changed for the better in petroleum products in the past 60 years. The original recommendation was EP Gear Oil conforming to Ford specification M-4864-A and B, SAE 80 below +32 degrees F, and SAE 90 above +32 degrees F. (Do you want to change your hydraulic fluid every spring and fall? ) However, the new recommendation from the local Ford-New Holland dealer now recommends Ambra Multi-G 134 (NH-410B) synthetic fluid. Some people stick with the original spec and use 90w mineral oil. The modern equivalent of 90w mineral oil is TSC Traveler brand GL-1 or NAPA part number 65-205. Those may be less expensive, but the Multi-G 134 synthetic is good from -5 to 120 degrees F! CNH sells a product called Ambra 134D that conforms to that specification. The equivalent product (and less expensive) from TSC that meets Ford spec M2C-134d is their Universal Tractor Fluid. Neither of these products are SAE 90 gear oil - they are multi-purpose oils with an exceptionally high viscosity index engineered specifically for this type of application. The TSC product labeled "Ford Tractor Oil" is a plain SAE 90 gear oil.

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