changing spark plugs in winter

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! Changing spark plugs in the cold is perfectly fine for your car, but it can be rough on you! Just make sure the engine is completely cold before starting. Aluminum cylinder heads don’t like surprises, and removing plugs while the engine’s warm could damage the threads. A pro tip: If it’s below freezing, keep those plugs warm indoors until you're ready to install them—this can help ensure a snug fit. And maybe keep a warm beverage nearby for yourself, too. If you need any further advice or want help finding a trusted RepairPal shop in your area, please feel free to call us at 877-913-1554.