I have been researching power steering fluid for my 1958 John Deere 620. I found lots of old threads on the antique tractor forums saying that you have to use Deere's AF2235R. They say the pumps don't work correctly unless its John Deere. Then others that use Hygard without issue.
Here is what I have found so far. Deere's AF2235R is made my Citgo and it's an EP 68 gear oil
My questions are:
Will Hygard work instead of the expensive AF2235R? What other fluids will work?
deere power steering oil
data sheet
msds
Hygard MSDS
Deere Hygard is ISO 48 to 68 which means it's basically a 10-20 weight oil vs the Deere AF2235R which is a 20W oil.
What is the latest thinking on this?
Thanks
Here is what I have found so far. Deere's AF2235R is made my Citgo and it's an EP 68 gear oil
My questions are:
Will Hygard work instead of the expensive AF2235R? What other fluids will work?
deere power steering oil
data sheet
msds
Hygard MSDS
Deere Hygard is ISO 48 to 68 which means it's basically a 10-20 weight oil vs the Deere AF2235R which is a 20W oil.
What is the latest thinking on this?
Thanks