Re: GL 1 oil
I don't know what Cat specified compared to Ford, but the Ford lubrication charts list a mild EP gear lubricate, today that would be GL-4. Here is a 41 chart calling for mild EP.
GL-4 is listed as Mil-L-2105 quality, what ever that means.
Last edited by JSeery; 08-09-2019 at 05:04 PM.
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