Is 40 psi too high for tire pressure?
No, for most cars a tire pressure of 40 psi is too high. You might find 40 psi suitable for some vehicles, especially if they’re carrying heavier loads or if the manufacturer’s recommendation is close to that figure. However, it’s generally too high for most passenger cars, which usually recommend between 30-35 psi. Please see the typically recommended tyre pressures for specific wheel sizes, below: 205/65 r16c 103/101 t – 4. Bar / 61psi. R16c 102/101t – 3. Bar / 51psi. R16 104t – 3. Bar / 45psi.