Since I bought my Mini, the offside front wheel has had a slow leak. It's not a puncture. I had the tyre removed and refitted, which didn't improve things, so had it replaced and it was OK for a while after that, but now it's started running flat again.
The tyres are run-flat tyres.
Could I use one of those puncture repair cans that squirts stuff into the tyre via the valve, a bit like Radweld for tyres? Would it work?