185/65-15
http://www.thetyrepressuremonitor.com/tyrepressures_vauxhall.html
The correct tire pressure for a Vauxhall Astra 1.4 liter engine is approximately 32 psi. Ensuring the correct tire pressure is used on the vehicle we help the tread life of the tires as well as the overall performance of the car.
32psi front 30 in rear
vauxhall vectra tyre pressures fully laden
1.9sri hatchback 120 bhp
Tyre_pressures_for_Vauxhall_vectra_SRI_120_CDTI_1.9_tyre_are_215_50_F17_91W
With 18" alloys its 33psi in the front and 30psi in the rear. Cheers.
Tyre pressure is not measured in KG. It's like asking "what is the weight of my car in Meters?"
The tire pressure values for a Vauxhall Corsa 1.2 are, front tires 32 PSI and rear tires 26 PSI. The correct tire pressure should used to help your tires last longer and enhance the safety of your vehicle.
I've just had the same issue arise on a lwb version and found the recommended pressures on a sticker located on the rear internal face of the driver's door.
Wheel size is 18inch. So tyre size for the sri xp is 225/40/18.