After a bad experience being stranded as a kid when my Mom’s 1975 Buick’s fuel gauge failed, I tend to follow the odometer and tripometer as well. I’ve also seen too many fluctuations in the accuracy of the fuel gauges in both the Jeeps and Toyotas I’ve owned to ever trust a fuel gauge. Alone, anyways.
Me, too. I always set one of the tripometer’s back to zero when I buy gas, know when it is near 300 miles of city driving I will have to refill.