Add Windshield Wiper / Washer Fluid: 1999 Ford F-150 Lightning 5.4L V8 Supercharged

Adding windshield washer fluid to your 1999 Ford F-150 is a fairly straightforward process. The video above shows you where the window washer fluid reservoir is located in your F-150, 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!