What should my pressure be? Make Model Spec ADAMAGILAAGILA 1.0 12V, 1.2, 16V, 1.3 CDTIAMPERAANTARAASTRAASTRA 1.4I, 1.4 TURBO, 1.6 16V, 1.3 CDTIASTRA 1.6 TURBO, 1.7 CDTI, 2.0 CDTIASTRA 2.0 TURBO. VXRASTRA 4 STUDASTRA 5 STUDASTRA CABRIO 4 STUDASTRA CABRIO 5 STUDASTRA COUPE 5 STUDASTRA COUPE/GTC 4 STUDASTRA COUPE/GTC 5 STUDASTRA GTC ASTRA GTC VXRASTRA ST 1.4I, 1.4 TURBO, 1.6 16V, 1.3 CDTIASTRA ST 1.6 TURBO, 1.7 CDTI, 2.0 CDTIASTRA TWIN TOPASTRA VAN 4 STUD ASTRA VAN 5 STUD ASTRA. KADETT DASTRA. KADETT EBELMONTBRAVA-CAMPO PICK UP 4X4, 2.5DICALIBRA 2.0I 8V, 16VCALIBRA 2.5I V6, 2.0I-TURBOCARLTON, SENATOR CASCADACAVALIERCAVALIER. VECTRACOMBO CORSA VANCOMBO CORSA VAN 4 STUDCORSACORSA 4 STUDCORSA 5 STUDCORSA OPC 5 STUDCORSA VXRFRONTERAFRONTERA IIINSIGNIAINSIGNIA SPORT TOURINGINSIGNIA VXRINSIGNIA VXR SPORT TOURERMERIVAMERIVA 4 STUDMERIVA 5 STUDMOKKAMONARO CV8MONTEREYMOVANOMOVANO VANNOVA / CORSAOMEGAOMEGA ESTATEOMEGA. SENATOR. CARLTONSIGNUMSINTRATIGRATIGRA (9K)VECTRA B 4 STUD.VECTRA B 5 STUDVECTRA C-CCVECTRA VXRVIVARO VANVX220 SPEEDSTERVXR8ZAFIRAZAFIRA TOURERZAFIRA VXR