What is the general capacity of a windshield washer fluid reservoir?

[VonEthan]

Generally, a windshield washer fluid reservoir holds about 4.5 liters. However, the filling capacity varies depending on the vehicle model. For ordinary sedans, adding 2 liters is usually sufficient. The method to add windshield washer fluid is as follows: 1. Turn on the wiper switch to spray the fluid onto the windshield; 2. Open the washer fluid filler cap and add a small amount of fluid; 3. Turn on the wiper switch to clean the remaining fluid; 4. When no more fluid sprays out from the nozzles during the second attempt, add more washer fluid. The functions of windshield washer fluid include: 1. Cleaning debris off the windshield; 2. Lowering the freezing point of the liquid; 3. Ensuring the windshield remains clear and transparent for good visibility; 4. Eliminating static charges on the glass surface; 5. Reducing friction between the wipers and the glass to prevent scratches.