I e-mailed them a couple
weeks ago, as I believe they make some of the finest synthetic lubricants
you can buy. This was the reply from Redline:
"In the Honda automatic
transaxles the Honda genuine ATF is called for. This fluid is a proprietary
closed-spec fluid, unfortunately we don't have a cross for it. I wouldn't
expect any after market fluid to satisfy this spec.
Thank you for your interest
in Red Line Oil."
Being a proprietary spec
fluid means (I think) that no one can get their formula. It doesn't necessarily
mean that nothing else will work, but that none of the synthetic manufacturers
can stand behind their product in this application.