Do you currently have car insurance? Insurance is mandatory to drive in California Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question How often should engine oil and transmission fluid levels be checked? Answers Before every ride Once a week Once a month Once a year Explanation You should check your motorcycle's engine oil and transmission fluid levels before every ride. Take a FREE Practice Test Now This questions appears in the following tests: Oklahoma Practice Test