Automatic Transmission Fluid and Power Steering Fluid

[Oily Rag]

Just home from shopping and realised I bought PSF instead of ATF. I saw that it was to Dextron 3 standard and thought no more. It’s for a Technodrive gearbox on a Beta 30, so only a small quantity needed.
Are ATF and PSF interchangeable, or do I have to go back to the shop?

 

[VicS]

Just home from shopping and realised I bought PSF instead of ATF. I saw that it was to Dextron 3 standard and thought no more. It’s for a Technodrive gearbox on a Beta 30, so only a small quantity needed.
Are ATF and PSF interchangeable, or do I have to go back to the shop?

ITYWF that ATF can be used as PSF but not the other other way. Id have thought though if what you have bought is Dexron III it is ATF