What should my pressure be? Make Model Spec 164. 2.0I 16V TURBO164. 2.0I TWIN SPARK164. 2.5 TD164. 2.5 TD SUPER164. 3.0 V6 Q4164. 3.0I V6164. 3.0I V6 24V164. 3.0I V6 SUPER164. 3.0I V6 SUPER LUSSO & CLOVERLEAF