I had almost this exact same scenario but front passenger tyre.
I'd had a slow leak for a few weeks (only ever got to around 36 PSI) and I only topped it up twice. The third time I topped it up I noticed the screw - the head was nearly worn away.
I took it to the local tyre place and they plugged it while it was still on the car. It took around 15 minutes and cost $30.
I'd had a slow leak for a few weeks (only ever got to around 36 PSI) and I only topped it up twice. The third time I topped it up I noticed the screw - the head was nearly worn away.
I took it to the local tyre place and they plugged it while it was still on the car. It took around 15 minutes and cost $30.