It's the 3-in-1 lubricant spray I used, and it's done the trick so far. I believe most car dealers will be able to get hold of a can of the "proper stuff" though.
Dan,
If you look at the pic I posted earlier in the thread and look at the properties of the pic it'll show you the website of the company that sells that particular brand. You can get PTFE silicon lubricant from any decent motor accessories or hardware store though.
I did a search for PTFE here in the U.S. but all the websites that sell the stuff point to the UK... any ideas if its called something else in the U.S.?
For anyone else with this problem - i ended up buying some 3 in 1 silicone spray and it worked a treat. i was generous with the nozzle under the seat, all over the railings and it seems to have done the trick!
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