Make Model Spec 8 SERIES. 18 OPT8 SERIES. 840 4.0 V8, 850 5.0 V128 SERIES. 840 CI 4.0, 3.08 SERIES. 840 CI 4.0.8 SERIES. 840 CI 4.4.8 SERIES. 850 CI 5.08 SERIES. 850 CI 5.6.8 SERIES. 850 CSI 5.6. What should my pressure be?
