Is It Dangerous to Store Windshield Washer Fluid in the Trunk?
2 Answers
Storing windshield washer fluid in the trunk is safe as it does not evaporate easily. However, make sure the cap is tightly closed. Windshield washer fluid is a liquid used to clean the vehicle's windshield and is considered a consumable item in car maintenance. Additional Information: Types and Selection of Windshield Washer Fluid: Windshield washer fluid is a cleaning solution for car windshields. It comes in various types, including summer formula, antifreeze formula, special antifreeze formula, and concentrated mix formula. Windshield washer fluid functions to clean and lubricate, as well as prevent freezing and fogging. When purchasing, choose based on your living environment. For example, opt for antifreeze formula during winter. Functions of Windshield Washer Fluid: Using windshield washer fluid while driving keeps the front windshield transparent; extends the lifespan of the glass and wipers; prevents window icing in winter; and reduces static electricity on the windows.
I think storing windshield washer fluid in the trunk isn't dangerous in most cases, but you should be cautious about temperature changes and bottle sealing. In summer, the car interior can heat up to 50-60°C. Regular washer fluid contains alcohol or similar substances that may evaporate or become flammable under high temperatures. If the bottle leaks and drips onto hot components, it could potentially cause accidents—though rare, this is a real risk. I recommend not storing it there year-round—it's fine for short trips, but check the cap tightness regularly. Since trunks often contain various items, avoid placing it near sharp objects to prevent leaks from soiling clothes or equipment. For safety, choose reputable brands and store in cool areas—after all, driving safety includes proper in-car item management. Windshield fluid is generally designed to be stable and unlikely to cause trouble, but prevention is better than regret.
