Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Engine Oil Pressure



Relief valve oil pressure with oil temperature at 176 °F (80 °C):

At idle = 70 kPa (0.7 kgf/cm2, 10 psi) minimum.

At 3,000 rpm = 300 kPa (3.1 kgf/cm2, 44 psi) minimum.