

Haven’t looked into it but do shops offer lube analysis services? Yeah you could send out your own sample to a lab, having it as a shop service would be way more accessible to people.
Though, in my experience, getting people to commit can be a pain, lots of “yeah I know we have a long p-f interval and it’s super noticeable before it functionally fails, but it’s not that much effort so I’m doing needless maintenance anyhow just in case”, which end of the day you do you.
You can muffle the beeper pretty effectively with some tape, the old air fryer we had terrified one of the dogs because of the incessant beeping. My coffee scale by default beeps whenever you touch it, thankfully that’s 100% mutable.
I also hate this.