l started noticing that the car was now lacking power, and when l checked the plugs. l realized they were black and wet. what can be the causes and how can l differentiate that the wet substance is petrol or oil?
l started noticing that the car was now lacking power, and when l checked the plugs. l realized they were black and wet. what can be the causes and how can l differentiate that the wet substance is petrol or oil?