Tried that pressure set for 160km/h or higher (38psi front and 36 psi rear), can say almost nothing happened to MPG, on trip with speed 80KM/H 120km length i get 3.0L/100KM, in town with speed up to 50KM/H trips 16km (but already warmed engine) infotainment calculated 2,6L/100KM, so maybe i get 0,1L/100KM difference…
So wo prefer more comfortable ride can’t recommend to inflate to this pressure’s unless speed may reach 160km/h or more.