Make Model Spec DISCOVERY III. 2.7DDISCOVERY III. 4.0 V6DISCOVERY III. 20 OPTIONDISCOVERY III. 4.4 V8DISCOVERY III. 4.4 V8 HSEDISCOVERY III. 4.4 V8 S, SEDISCOVERY III. 4.4 V8 XSDISCOVERY III. METROPOLISDISCOVERY III. SE 19 OPTDISCOVERY III. TD V6DISCOVERY III. TD V6 S, SEDISCOVERY III. TD V6 HSEDISCOVERY III. TDV6 GSDISCOVERY III. TDV6 XSDISCOVERY III. XS, GS 19 OPTLR3 V8 HSE OPTLR3. HSELR3. HSE 19 OPT.LR3. S, SELR3. SELR3. V8 HSE What should my pressure be?