Just a bit of "use it, don't use it" info (especially if you're as daft as I am).
Went for a ride out last weekend & did a bit of dirt along the way, as usual.
Tire started deflating & once I had stopped to pump it, the valve "got stuck" & the tyre started deflating quickly.
Pump attendant grabs an empty can of oil, chucks a bit on the valve, pumps it a little & off I go. I was mega impressed & he even followed-up with an explanation.
Like I said - Just a bit of "use it, don't use it" info!!