How Often Do I Need to Refill the Windshield Washer Fluid?

Your windshield gets dirty. It also gets frosty, dusty, and icy. Since it is an immediate concern to clear any obstruction from your view, it is important to be able to wash your windshield right away.

Every vehicle is equipped with a system to clean the front glass called a windshield washer system. It's comprised of:

  • A reservoir to hold washer fluid
  • A washer fluid pump
  • Washer fluid lines and hoses
  • Windshield washer nozzles or sprayers
  • A switch or button to activate the washers
  • A wiping system

When the windshield is dirty, you press the windshield washer button typically located on the turn signal lever. Vehicles equipped with a rear windshield washer and wiper will have a separate switch that could be located on the dash or on a column lever as well. The washer fluid sprays and the wipers clear the fluid from the windshield.

Refilling the washer fluid reservoir

Washer fluid will run out eventually, though each spray uses only a minuscule amount of fluid. In messy winter weather and in environments where the road conditions are dusty and dirty, you will need more washer fluid to keep the windshield clean. The washer fluid should be filled at every service interval, whenever it runs out, or at a change of seasons.

Bug wash is a soapy mixture that is great for removing bugs and dirt from the windshield. If you use bug wash in your windshield washer reservoir during summer months, make sure it is emptied before winter. If washer fluid is not equipped with antifreeze, as is the case with bug wash, it can freeze in the reservoir which will damage both the reservoir and the pump. The reservoir can crack and leak all the fluid out so you won’t be able to spray washer fluid at all. If the pump freezes and gets damaged, it will not be able to pump washer fluid to the nozzles to spray.

Use windshield washer antifreeze in winter months to prevent damage to your washer system. It is also good for clearing ice and snow from your windshield when it is sprayed onto the glass.


The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

Related articles

How Do I Prepare My Car for Summer?
Summer's Summer's heat, dust, and stop-and-go traffic will take their tolls on your vehicle. Follow these tips to ensure optimum wellness of your car: Air Conditioning: Have your air conditioning inspected (https://www.yourmechanic.com/services/heating-ac-inspection) by a qualified technician. Newer models have cabin...
How to Replace a Windshield Wiper Module
Car windshield wiper modules control the wiper speed. If windshield wipers aren't working, replace them immediately.
How to Replace a Combination Switch Assembly
Combination switches include the control of turn signals, windshield wipers, windshield washers, and high beams. Faulty switches can cause accidents.

Related questions

Car runs hot and antifreeze leaks
First we have to find out where the coolant is leaking. That could be the cause of the over-heating, or just another symptom. Engines that heat up and run hot very quickly is a common symptom of the head gasket...
White smoke at idle, oil residue on engine
Hello. From the symptoms you describe, it would appear that the vehicle has some sort of issue with the cooling system. If the white smoke was coming from the tailpipe, the coolant has to be frequently replaced, and the there...
Can my antifreeze leak be linked to my transmission problem?
Hi there. You will need to first find the coolant leak and address the leak and get it fixed. The engine may overheat and cause even more problems. The transmission or engine misfires could be from the coolant leak if...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com