WD-40® Brand on Twitter: "Car doors can get a bit sticky in colder weather. To prevent them from freezing shut, spray down the door seals with WD-40® Specialist® Water Resistant Silicone Lubricant.
WD-40 Long-Term Exposure Testing on Rubber Parts (Experiments Ep.2) - YouTube
3-IN-ONE RV care 11-oz Rubber Seal Conditioner in the Hardware Lubricants department at Lowes.com
How to clean and protect car window rubber seals with silicone lubricant
WD-40 SPECIALIST 11 oz. Silicone, Quick-Drying Lubricant with Smart Straw Spray 300012 - The Home Depot