Synthetic ATF?

Syn ATF fluid has a higher and lower operating temp then reg ATF. Example, that a look at dextron 6 (it's the stock fluid in my dd) it is some pretty cool stuff on what can do bud it ain't cheap (paid 12 for a quart at the dealer one time but found it by either the gal or 5 quart for cheaper then buying single bottles). It's what I'll be sticking in my 200R4