What is the cause of if the kappa II 1.25 L ENGINE SMELLS PETROL IN THE OIL FILLER CAP?

A petrol smell in the oil filler cap of a Kappa II 1.25 L engine typically indicates fuel dilution in the engine oil, which can result from several issues. Common causes include a faulty fuel injector leaking fuel into the combustion chamber or a malfunctioning fuel pressure regulator. Additionally, worn piston rings or valve seals may allow fuel to enter the oil system. Addressing these issues promptly is crucial to prevent engine damage.