The best way to confirm the tyre pressure is to look for this sticker on the driver’s side door, this clearly confirms the size of your tyre on your car and the correct pressure.
Remember tyre pressures should be checked when the tyres are cold and it’s important to remember the longer you drive the higher the temperature of the tyre. The best tyre pressure pump for your money is this one. You might consider buying this tyre tread tool as well.
21″ Staggered – 40psi
21″ Square – 40psi
19″ Square – 42-45psi