The pressure of lubricating oil is too low

Checks by the user

• Wrong grade of lubricating oil
• Not enough lubricating oil in sump
• Defective gauge
• Dirty lubricating oil filter element

Check by the workshop personnel

• Crankshaft bearings are worn or damaged
• Lubricating oil pump is worn
• Relief valve does not close
• Relief valve spring is broken
• Fault suction pipe of lubricating oil pump
• Restriction in sump strainer