New Hydraulic Oil

[JMJ Farms]

I’ve been told that 303 fluid and J20 fluid won’t mix. Is this correct? If so, what happens when you hook a tractor using J20 up to 10 different implements that have previously been hooked to tractors using 303 fluid?

Second question. Is Deere HyGard better than any other J20 oil or are you paying for the name?

 

[Caustic Burno]

I’ve been told that 303 fluid and J20 fluid won’t mix. Is this correct? If so, what happens when you hook a tractor using J20 up to 10 different implements that have previously been hooked to tractors using 303 fluid?

Second question. Is Deere HyGard better than any other J20 oil or are you paying for the name?

Somewhere in the 70’s ISO hydraulic oils were standardized. So X weight is X weight in another brand. AW stands for an anti wear additive.
So a hydraulic fluid meeting the same specs should be equal performance.
I would need to research the hydraulic oils as they are screwed up ISO 32 is 10W and 30W is ISO 100. There are a couple others i can’t remember.

 

[Atimm693]

They will mix. The amount of dilution with implements is usually not enough to matter.

You can use any oil that meets the specs of you machine. If the data sheet of the oil states that it meets or exceeds the J20C spec, you can use it.

 

[JMJ Farms]

I’ve been told that 303 fluid and J20 fluid won’t mix. Is this correct? If so, what happens when you hook a tractor using J20 up to 10 different implements that have previously been hooked to tractors using 303 fluid?

Second question. Is Deere HyGard better than any other J20 oil or are you paying for the name?

Somewhere in the 70’s ISO hydraulic oils were standardized. So X weight is X weight in another brand. AW stands for an anti wear additive.
So a hydraulic fluid meeting the same specs should be equal performance.
I would need to research the hydraulic oils as they are screwed up ISO 32 is 10W and 30W is ISO 100. There are a couple others i can’t remember.

Read an article that said 303 has been obsolete since 1984 and that it shouldn’t even be made anymore. Also said that Missouri and Georgia had passed a law that banned selling it. But I can still get it many places. So I don’t know what that’s all about.

 

[JMJ Farms]

They will mix. The amount of dilution with implements is usually not enough to matter.

You can use any oil that meets the specs of you machine. If the data sheet of the oil states that it meets or exceeds the J20C spec, you can use it.

So just maintain the normal schedule for changing filters and fluid and it will be fine. Thank you.

 

[chevytaHOE5674]

Just because an oil meets a minimum spec doesn't mean that it equal to another oil meeting the same spec.

For instance a John Deere or Shell "premium" oil will most likely have a better additive package (to deal with heat, water, foaming, etc) than some generic oil from TSC. The junk floating in the bottom of the buckets of stuff I've seen from TSC are enough to make me not want to use it for chainsaw bar oil even though it meets the spec for my expensive piece of equipment.

 

[M-5]

I changed hyd oil today in the NH and it appears to meet all the specs 38.00 bucket


upload image files

I still run 303 in the 74 jd and 53 ford back hoe hydraulic. The trans on the old ford and the 35 Ferg uses mineral oil.

 

[ddd75]

Just because an oil meets a minimum spec doesn't mean that it equal to another oil meeting the same spec.

For instance a John Deere or Shell "premium" oil will most likely have a better additive package (to deal with heat, water, foaming, etc) than some generic oil from TSC. The junk floating in the bottom of the buckets of stuff I've seen from TSC are enough to make me not want to use it for chainsaw bar oil even though it meets the spec for my expensive piece of equipment.

exactly.

all that cheap hydraulic oil is refined used hydraulic oil + whatever they collect from dealerships.

like you said.. wouldn't even use it for bar oil.. :lol2: