22. Cold Air
Cold air is thicker and denser than warm air, affecting aerodynamic drag on your vehicle. Your car works harder to perform normally in the cold. If you enjoyed this engine fact or know someone who would, be sure to share it. Coming up next are more awesome engine facts. We saved the best for last so be sure to stick around until the end. Quote of the day: “Scientists investigate that which already is; Engineers create that which has never been.” – Albert Einstein”