2011 Ford F450 Super Duty Crew Cab Owner Guide 4th Printing - Page 370

Maintenance and Specifications WINDSHIELD WASHER FLUID Add fluid to fill the reservoir if the level is low. In very cold weather, do not fill the reservoir completely. Only use a washer fluid that meets Ford specifications. Do not use any special washer fluid such as windshield water repellent type fluid or bug wash. They may cause squeaking, chatter noise, streaking and smearing. Refer to Maintenance product specifications and capacities in this chapter. State or local regulations on volatile organic compounds may restrict the use of methanol, a common windshield washer antifreeze additive. Washer fluids containing non-methanol antifreeze agents should be used only if they provide cold weather protection without damaging the vehicle's paint finish, wiper blades or washer system. WARNING: If you operate your vehicle in temperatures below 40°F (5°C), use washer fluid with antifreeze protection. Failure to use washer fluid with antifreeze protection in cold weather could result in impaired windshield vision and increase the risk of injury or accident. CHANGING THE WIPER BLADES 1. Pull the wiper arm away from the vehicle. Pry open the lock cover with your thumb (1) to release the blade and pull the wiper blade down toward the windshield to remove it from the arm (2). 2. Insert the wiper arm hook into the wiper arm (3). Replace wiper blades at least once per year for optimum performance. Poor wiper quality can be improved by cleaning the wiper blades and the windshield. Refer to Windows and wiper blades in the Cleaning chapter. 370 2011 F-250/350/450/550 (f23) Owners Guide, 4th Printing USA (fus)