What should my pressure be? Make Model Spec POLARA. 2 SEAT WAGONPOLARA. 3 SEAT WAGONPOLARA. 318. 360 ENG. INCL CUSTOMPOLARA. 318. 360 ENG. INCL CUSTOM OPTPOLARA. 318. 360 ENG. INCL CUSTOM OPT IIPOLARA. 400. 440 ENG.POLARA. 400. 440 ENG. OPT