[RKDinOKC]

Usually make pit stops about every 200 miles. So that's like what... every 30 minutes?
Mostly to get out and walk around a bit, wash the windshield, top up the drinks and snacks, visit the facilities, etc.
Typically other travelers will comment and talk about the 928 as well. That always tops up the feel good too.
So, fill 'er up and do a fluid check to make it a full on complete pit stop.

Never have the fuel light come on while on a trip and on the Cayennes it becomes a nuisance at 70 miles.