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1970 John Deere 4020 diesel
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JSE
Posted 12/2/2016 18:06 (#5671451)
Subject: 1970 John Deere 4020 diesel


The 4020 is due an oil change, what is the suggested type and grade of oil that a guy should use? The tractor has about 7000 hours total , ( 1500 hours post a complete engine o/h), the tractor is for light duty summer use, parked in a shed for the winter.
TIA
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deeretech14
Posted 12/2/2016 18:10 (#5671457 - in reply to #5671451)
Subject: RE: 1970 John Deere 4020 diesel



SW Ohio
Don't change it until spring and use John Deere plus 50 15W40 and a John Deere filter for longest engine life.
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Mark (EC,IN)
Posted 12/2/2016 18:30 (#5671509 - in reply to #5671457)
Subject: RE: 1970 John Deere 4020 diesel



Schlegel Farms, Hagerstown Indiana
deeretech14 - 12/2/2016 18:10

Don't change it until spring and use John Deere plus 50 15W40 and a John Deere filter for longest engine life.


I disagree with the waiting till spring.....I don't like them to set with dirty oil over winter. Get the dirt and sludge (old oil) out before it settles out over winter.
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SmallTimeFarmer
Posted 12/2/2016 18:30 (#5671511 - in reply to #5671451)
Subject: RE: 1970 John Deere 4020 diesel


Mi
Deere filter, chevron delo or Mobil delvac 15w40
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thefarmers
Posted 12/2/2016 18:31 (#5671514 - in reply to #5671457)
Subject: RE: 1970 John Deere 4020 diesel


I'd change it now. Better than setting all winter with contaminated oil.
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JSE
Posted 12/2/2016 18:40 (#5671545 - in reply to #5671511)
Subject: RE: 1970 John Deere 4020 diesel


whats the view on synthetic oil??....understand that the John Deere 50 plus II is a Chevron oil??
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Mike Aylward
Posted 12/2/2016 18:54 (#5671579 - in reply to #5671545)
Subject: RE: 1970 John Deere 4020 diesel


Northeast Missouri
Last I knew Deere oil is made by Northland out of Waterloo.
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Kenny
Posted 12/2/2016 19:09 (#5671612 - in reply to #5671451)
Subject: RE: 1970 John Deere 4020 diesel


EC IA
I hope there isn't a bunch of sludge in an engine that was
overhauled 1500 hr. ago. I'd wait till spring.
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thefarmers
Posted 12/2/2016 19:24 (#5671650 - in reply to #5671612)
Subject: RE: 1970 John Deere 4020 diesel


Its the contaminates in the oil, not sludge. I always heard they eat away at the bearing material.
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Wheat77
Posted 12/2/2016 19:38 (#5671690 - in reply to #5671457)
Subject: RE: 1970 John Deere 4020 diesel


deeretech14 - 12/2/2016 18:10

Don't change it until spring and use John Deere plus 50 15W40 and a John Deere filter for longest engine life.


+1. Best advice.
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jddriver
Posted 12/2/2016 19:38 (#5671692 - in reply to #5671457)
Subject: RE: 1970 John Deere 4020 diesel



Greenwood Mo
deeretech14 - 12/2/2016 18:10

Don't change it until spring and use John Deere plus 50 15W40 and a John Deere filter for longest engine life.

As a former mechanic this made me a lot of money due to the acids in the oil ecthing the bearings. Get it warm drain the oil andchange the filter only way to put them to bed
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Wheat77
Posted 12/2/2016 19:43 (#5671704 - in reply to #5671692)
Subject: RE: 1970 John Deere 4020 diesel


jddriver - 12/2/2016 19:38

deeretech14 - 12/2/2016 18:10

Don't change it until spring and use John Deere plus 50 15W40 and a John Deere filter for longest engine life.

As a former mechanic this made me a lot of money due to the acids in the oil ecthing the bearings. Get it warm drain the oil andchange the filter only way to put them to bed


Spring works well here, and has for 50 years. Very cold, condensation, I like new oil in the spring.
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Rayl
Posted 12/2/2016 20:36 (#5671844 - in reply to #5671451)
Subject: RE: 1970 John Deere 4020 diesel


Saline County, Mo
I don't see how oil sitting in the bottom of an oil pan could etch a bearing it's not in Wait till spring
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Southern Farmer
Posted 12/2/2016 20:59 (#5671925 - in reply to #5671451)
Subject: RE: 1970 John Deere 4020 diesel



West Texas

Don't know about all the oil numbers today but back in the day when I worked at the refinery, All of the motor oil that we put in cans (yes, that long ago) came to the refinery in rail cars. All of the 30 wt went into one tank and we canned oil for all of the major oil companies. Didn't make any difference what the label on the can said, it all came out of that one tank. Same deal for hydraulic oil. Some of it did require that we put a couple of drops of some additive in each can so that they could advertise it as different and better.

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RickB
Posted 12/3/2016 04:44 (#5672402 - in reply to #5671925)
Subject: RE: 1970 John Deere 4020 diesel



Lincoln County. NC
Southern Farmer - 12/2/2016 21:59

Don't know about all the oil numbers today but back in the day when I worked at the refinery, All of the motor oil that we put in cans (yes, that long ago) came to the refinery in rail cars. All of the 30 wt went into one tank and we canned oil for all of the major oil companies. Didn't make any difference what the label on the can said, it all came out of that one tank. Same deal for hydraulic oil. Some of it did require that we put a couple of drops of some additive in each can so that they could advertise it as different and better.



So you prove a point. Additive packages are what create differences between oil brands.
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Gerald J.
Posted 12/3/2016 13:22 (#5673202 - in reply to #5671844)
Subject: RE: Bearing etching



Bearings etch from water in the oil and in the bearings. The bearing insert is usually copper or silver and the crankshaft is steel. With water or any conductor between them makes a battery that is shorted by the rest of the assembly and that shorted battery eats away at the metals. Modern oils include anti etching additives to slow that down.

Gerald J.
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JSE
Posted 12/3/2016 20:25 (#5674002 - in reply to #5672402)
Subject: RE: 1970 John Deere 4020 diesel


Thanks for the feedback...this is a great site. As i read through some of the other items that have been posted on this site .... the old adage applies ..." you don't know what you don't know!!'
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