Windshield washer fluid?

I hate mixing fluids, wonder what Mr. Toyota put in the bottle? I could run it all out and start with something more magical for cold winter slush use. Seems like dealers all sell aftermarket for replenishables, I've had them try to sell me green coolant.

128 fl. oz. -20°F All Season Windshield Washer Fluid 111205 - The

GUNK Windshield Washer Fluid with Antifreeze

McKee's 37 Anti-Frost Windshield Washer Fluid Concentrate - 128 oz

ISI Windshield Washer Fluid Super Concentrate

Rain X Windshield Washer Fluid

Super Tech Summer Formula Windshield Washer Fluid +32F Protection

Anti-Frost Windshield Washer Fluid

Windshield Washer -45 degrees Fahrenheit is a blend of 72% methanol and water with blue dye. This Windshield Washer Concentrate can be diluted to meet

Windshield Washer Fluid 72% Concentrate -45F

Turbo Power Windshield Washer, 3.78 L

Qwix Mix Qwc-8 oz. Biodegradable Windshield Washer Fluid Concentrate, Silver

Prestone 2-in-1 All Season Year Round Windshield Washer Fluid 0 Degree (1 Gallon),Orange

Wholesale Totally Awesome Windshield Washer Fluid - 1 gal

Gallon Xtreme Blue Windshield Washer Fluid ( -20 deg. F

Windshield wiper fluid accounts for large percentage of toxic