Make Model Spec CORONET. 2 SEATERCORONET. 3 SEATERCORONET. 318, 400 ENGCORONET. 318, 400 ENG OPTCORONET. 340, 440 ENGCORONET. 340, 440 ENG OPTCORONET. 6 CYL 225 CORONET. 6 CYL 225 OPTCORONET. 6 CYL AIRCORONET. 8 CYL AIRCORONET. AIR RADIAL OPTCORONET. RADIAL OPT.CORONET. WAGON.CORONET.. HEMI What should my pressure be?