What should my pressure be? Make Model Spec COMMANDER. 3.0 CRD LIMITEDCOMMANDER. 3.0 CRD PREDATORCOMMANDER. 3.7 V6, 4.7 V8, 5.7 HEMI LIMITED, SPORT, OVERLANDERCOMMANDER. 3.7 V6, 4.7 V8, 5.7 HEMI V8OVERLAND OPT