I couldn't find much info on the redline mt-85, I recently bought some and wanted to post this review.
I was using the redline mt-90. Now that's temps are getting colder. I found myself struggling to get the car into gear and shift through them. The colder it was, the worse it became even when car was at full operating temp. It still shifted absolutley terrible.

Got the fluid changed to mt-85. Initially while pouring it into the trans. It didn't look any thinner, still fairly thick. Over all the car shifts a lot better. Also shifts very good in cold weather, which makes me happy.

I also want to say that I have Shep ultimate ratio trans with around 3k miles on rebuild.

Mt-85 is great, and will keep your trans shifting smooth through out winter

 

MTL, MT85 and MT90 are all the same just different viscosity.The MT85 just saves you having to do a mix. I found MT90 to shift ok when cold but a mix shifts noticeably better.