When driving in fog, you should: Do you currently have car insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question When driving in fog, you should: Answers Use your horn. Use the low beam lights. Use the high beam lights. Use the heater. Explanation If you must drive in fog, you should use your low beam headlights and fog lights to maximize your visibility. Using high beam lights will only make it more difficult for you to see. This questions appears in the following tests: Minnesota Double South Dakota Double West Virginia Double