My hi lo post is bleeding!!! Oozing almost. Its losing a lot of fluid and I’m trying to stem the flow but I fear the only real way is to replace the top seal.
Anybody know where I can find replacement parts for the post?

any upgrade dealer should be able to sort parts.

I’m sure upgrade have a UK service centre too.

http://shop.upgradebikes.co.uk/maplayers/map.aspx

Still in warranty? Mine was doing that too and it went back to Upgrade for a warranty repair earlier this year.