Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › MOTOR OIL IN RADIATOR AND COOLANT IN MOTOR OIL FILL TANK AND CAP › Reply To: MOTOR OIL IN RADIATOR AND COOLANT IN MOTOR OIL FILL TANK AND CAP December 24, 2020 at 9:50 pm #987767 Bang KlasParticipant By the way, the problem may also be in the oil.