#16 Preserve Door and Window Seals
Wipe a rubber protectant (such as Armor-All) or silicone on door and window weatherstripping to keep it in good condition. Don’t use an oil based product, such as WD-40, because the oil will damage the rubber. Regular cleaning and treatment of your car’s weatherstripping will also lessen the likelihood of your door sticking to its rubber seal in cold weather, a common cause of damage to the rubber.