Steve,

Here in the states, Mitsu has a proprietary blend under the brand name "Diamond Star" they would like used in all their autoboxes (primarily because it puts profit back into their shops). For all I know, it's just repackaged ATF+4...but I can't hang my hat on that one.

I would recommend you contact Mitsu UK and get product info from them...primarily because SAE specs and ACEA (EU sanctioning body for lubricants) can differ.

Cheers,

Rob in Hell (ex. Gaydon resident)