What should my pressure be? Make Model Spec PRIMERA III. SVEPRIMERA III. SXPRIMERA III. T-SPECPRIMERA III. 1.6I, 1.8I, 1.9DCI, 2.0, 2.2 DCI. ESTATE S, SE, SVEPRIMERA III. 1.6I,1.8I,1.9DCI. 2.0. 2.2 DI, 2.2 DCI. S, SE, SVEPRIMERA III. 17 OPTPRIMERA III. 2.5