Add Windshield Wiper / Washer Fluid: 1990 Ford F-350 Custom 7.5L V8 Crew Cab Pickup (4 Door)

Adding windshield washer fluid to your 1990 Ford F-350 is a fairly straightforward process. The video above shows you where the window washer fluid reservoir is located in your F-350, how to remove the reservoir cap and how to refill the windshield wiper / washer fluid. The nice thing about adding windshield washer fluid is that you can't overfill the reservoir - once it's full, you can stop adding fluid!