The service center uses a long neck OilSafe spout to add windshield washer fluid without needing a funnel that blocks seeing the fluid level before it
Model 3 windshield washer fluid, Page 3
Windshield Washer Fluid Hacks - Canadian Handywoman
Model 3 windshield washer fluid, Page 2
, Made from quality materials to ensure reliable performance and long service life. The windshield washer cap would prevent the fluid from leaking
Windshield Washer Fluid Reservoir Bottle Tank Cap with Rubber Water Funnel Set for Honda Civic 38513-SB0-961
How to Add Windshield Washer Fluid to a Sprinter Van
Lets Talk Windshield Washer Fluid, eh?
The Super QuickFill funnel is a part of the High Performance funnel series from FloTool. These ultimate funnels incorporate best in class features that help get the job done quicker and easier.
Hand-E Quick Funnel
Model 3 windshield washer fluid, Page 2
2020 Ford Explorer windshield reservoir cover, question family do they make cover to protect these electrical wires from over spill from windshield fluids in the engine bay? : r/FordExplorer
My next project Transmission fluid change - 2012 Pilot - Do you fill through the dipstick like this video?
Windshield washer fluid?
How to Make Your Own Windshield Wiper Fluid - Easy To Make DIY
Windshield Wiper Washer Liquid Funnel Black for Tesla Model Y 3 Durable, Size: 14cmx5cm