Winter driving puts your windshield washer fluid to work. Road salt, slush and freezing spray can coat your windshield in seconds, and the wrong fluid can freeze in the reservoir or on the glass just when you need it. Here is how to pick the right washer fluid for cold weather.
Why summer washer fluid is not enough
Basic or summer blends are mostly water and can freeze in cold temperatures. Frozen fluid will not spray, and in some cases it can damage the reservoir or lines. Winter fluids are formulated with a lower freezing point so they keep flowing on cold mornings.
De-icer vs all-season washer fluid
- De-icer fluids are made to help melt light frost and ice on the windshield as well as clean it. They are a good choice where you see frequent frost and freezing spray.
- All-season fluids clean well year-round and are rated for cold weather, so you can leave them in the reservoir through the seasons.
- Check the rating. Each bottle lists the lowest temperature it is rated for (for example -25°F or -30°F). Pick one rated for the coldest weather you drive in.
Winter windshield tips
- Switch before the first freeze. Run the reservoir low on summer fluid, then top off with a winter-rated fluid so it is not diluted.
- Use a funnel. It keeps fluid off the engine bay and makes topping off in the cold much easier. Our washer fluids include a My Garden Pool plastic funnel spout.
- Keep a spare gallon in the garage. You go through fluid much faster in salty, slushy conditions.
- Do not use hot water on a frozen windshield; the sudden temperature change can crack glass.
- Check your wiper blades. Worn blades streak even with the best fluid.
Washer fluids we carry
- Rain-X De-Icer Windshield Washer Fluid, 1 gallon
- Prestone De-Icer Winter Windshield Washer Fluid, 1 gallon
- See all windshield washer fluids, including multi-gallon packs from Rain-X, Prestone and Splash
While you are getting ready for winter, check out our ice melt and RV & marine antifreeze. Orders over $50 ship free.