Depends on tire and vehicle make.
Check your owners manual or a label in the driver door jamb for pressure specs.
what is 55-17
Tires are rated for different pressures. Look on the tire at its min and max pressure ratings and make sure your in the middle. It is written on the sidewall of the tires.
A 215/70-15 is close.
Yes, you can mount 225-60r16 tires on a rim made for 215-65r16 tires.
Even though all four tires have the correct tire pressure, the light will stay on if the pressure in the spare tire is incorrect. This is because of a sensor in the tires.
40 psi
No, get a tire shop to check first.
The recommended pressure is listed on a decal on the drivers door jamb. With 215/65/16 tires, they recommend 36 psi cold
If there is enough clearance for the wider tire, yes.
It depends on the tire type and the load of the vehicle. Tire pressure is the amount of air in a tire that inflates the tire to the maker's specifications. For specific tire pressure on a specific vehicle, please look at the sidewall area, as most tires display the recommended pressure according to maximum load.
The only difference is that 215 tires are taller. The first number in the name (215) indicates the tire sidewall height, the second part (55) is the tire tread width, the third part (r) shows that the tire is a radial tire, and the fourth part (16) indicates the rim size.
Tire pressure does not depend on what vehicle you have but what tires you have. What size and type of tires do have on your Jeep