Same problem for me when coming back from the Revival at the weekend. 5 minutes of fiddling around in the service station to get the cap off being careful not to bend or break the lift up lever which feels pretty flimsy. Real feeling of relief to be able to refuel!
I'll try and have a look one evening this week to see what/where can be greased.
At last on the CX though, I am not greasing suspension so I have got spare time to spread grease on the fuel cap :-).