Wagon R mileage in full tank (auto stop)

trip meter reading 15KM into reserve (last dot blinking)

odometer reading

meter auto stopped at 2488 (then rounded up to 2500)
Mileage: 695.4/32.66 = 21.29 KM/l
without AC
on Motorway (ISB/FSD round trip)
3 person on board.
I usually stay between 100 & 110 KM/h with minor deviations due to elevation.
GTRadial stock tyres.
tyre pressure 36psi (checked over a month ago so could be less)

before resetting trip meter 