Transmission Oil for A and 70

John Deere A and 70 models: What type, weight of transmission oil is required and in what quantity?

Use 80 -90 wt gear oil. Approximately 7 gallons for the Model A. Do not know about the 70.

Rodney 8)

I recently changed all the fluids in my 1952 model 60, which is the descendent of the model A . There are many posts on this forum and some lively discussion as to which fluids are appropriate for your application. Has to do with whether newer formulations are "yellow metal friendly", regarding brass and other softer components in the drive train. I found such a fluid at my local Car Quest.

Randy,
I usually split the difference and use a blend. Around here we can get 90/140. It's a good compromise. Sometimes 80/90 gets a little thin in the summer and the gear noise is more noticeable. Good Luck!
John

50wt motor oil is about the same viscosity as sae 90 gear oil. Doesn’t stink, is yellow metal friendly and a better quality than GL-1.

Motor oil does not ruin the live pto clutch disks if the 70 has live pto and the shaft seals are leaking transmission oil into the pto clutch.

?[b:654c4848f0][i:654c4848f0]<font color="#6699ff">What type, weight of transmission oil is required and in what quantity?[/i:654c4848f0][/b:654c4848f0]</font>?

[b:654c4848f0]Model A[/b:654c4848f0]
Depending on the year model and serial number of your Model A tractor, there are two different oil weights recommended and two different quantities.

Take a look at the table below for the three different operator's manuals for the Model A.



Take a look at the [b:654c4848f0]TRANSMISSION LUBRICATION[/b:654c4848f0] information below from [b:654c4848f0]OM-R000R[/b:654c4848f0].



Note that 140 weight is recommended and the oil capacity is 8 gallons.

Take a look at the identical [b:654c4848f0]TRANSMISSION LUBRICATION[/b:654c4848f0] information below from [b:654c4848f0]OM-R001R[/b:654c4848f0] and [b:654c4848f0]OM-R2002R[/b:654c4848f0].



Note that 90 weight is recommended for 0^o F. and UP and the oil capacity is 7 gallons.

Note that 80 weight is recommended for Below 0^o F. and the oil capacity is 7 gallons.

[b:654c4848f0]Model 70[/b:654c4848f0]
There are two oil weights and one quantity for all Model 70 tractors.

Take a look at the identical [b:654c4848f0]TRANSMISSION LUBRICATION[/b:654c4848f0] information below from [b:654c4848f0]OM-R032R[/b:654c4848f0] and [b:654c4848f0]OM-R2036R[/b:654c4848f0].



Note that 90 weight is recommended for 0^o F. and UP and the oil capacity is 7 1/2 gallons.

Note that 80 weight is recommended for Below 0^o F. and the oil capacity is 7 1/2gallons.

Hope this helps.