I purchased a 1997 bucket truck last year, and the hydraulic fluid in the lift was getting low. On the side of the hydraulic fluid reservoir it says "ATF 220 Only". I have been unable to find this anywhere, with the exception of Amazon.UK. I understand that Dextron IID is "compatible" but that also has eluded me. Can anyone tell me if there is a modern fluid that is readily available would be suitable for this application? Thanks in advanceF!