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SAE 80 EP ?

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David G. View Drop Down
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    Posted: 23 Jul 2012 at 5:17pm
I recently added a D19 diesel to the stable . I am going to change all of the fluids. The operators manual calls for SAE 80 EP for the transmission and final drive. Is this the same as 80w-90 gear oil? I know oil specs have changed since the early 60's and was thinking its the same but thought I would ask to be sure. Thanks in advance.
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Joe(TX) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Joe(TX) Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jul 2012 at 8:27pm
It will work fine
1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, All crop 66 big bin, Diesel, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A
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David G. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote David G. Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jul 2012 at 8:28pm
anybody?
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D-17_Dave View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote D-17_Dave Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jul 2012 at 8:32pm
EP stood for Extra Pressure, hence to make sure there was still a film of oil between the gear teeth from the torque. Due to the oil chemistry we have today there are additives that eliminate this designation. Todays 80/90 weight is the replacement.
Yea, I can fix that.....
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David G. View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote David G. Quote  Post ReplyReply Direct Link To This Post Posted: 23 Jul 2012 at 8:47pm
I would have used the 80/90 and never thought anything else about it, but today when I was at the Rural King there was a SAE 90 EP oil that said hyd/trans and said ford in parenthesis. I thought it was worth asking about . Thanks for the help.
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