Straight 450 fluids

[autigers100]

I have a straight 450 loader with the HLN transmission and I would like to change the transmission and drive unit fluids. I know the manual calls for 303 fluid but true 303 fluid is unavailable. I prefer to get the fluids from Tractor Supply but I'm not sure on what to get. Any help?

[Jim B]

I use the TSC Premium UTF (Black Pail) which says it meets the current JD J20C specs, which is the successor, several steps beyond, JD303.

[autigers100]

Do you use this for both the transmission and the drive units?

[Jim B]

Where the JD303 was called for in the past; an oil meeting or exceeding the current JDM J20C (Hy-Gard oil) spec is what you are looking for. That JD spec is the current JD recommended replacement for JD303. The TSC Premium Universal Trans/Hydraulic Fluid does meet that spec per the label on the pail. So if your manual calls for 303 in both, the answer is yes that same oil will work in both.

[autigers100]

Thanks for the help.