2009 Ford F250 Super Duty Super Cab Owner's Manual - Page 372

Maintenance and Specifications CHANGING THE WIPER BLADES 1. Pull the wiper arm away from the vehicle. Turn the blade at an angle from the wiper arm. Push the lock tab to release the blade and pull the wiper blade down toward the windshield to remove it from the arm. 2. Attach the new wiper to the wiper arm and press it into place until a click is heard. 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. To prolong the life of the wiper blades, it is highly recommended to scrape off the ice on the windshield before turning on the wipers. The layer of ice has many sharp edges and can damage the micro edge of the wiper rubber element. ENGINE OIL Checking the engine oil Refer to the scheduled maintenance information for the appropriate intervals for checking the engine oil. 1. Make sure the vehicle is on level ground. 2. Turn the engine off and wait 15 minutes for the oil to drain into the oil pan. 3. Set the parking brake and ensure the gearshift is securely latched in P (Park) (automatic transmission) or 1 (First) (manual transmission). 4. Open the hood. Protect yourself from engine heat. 5. Locate and carefully remove the engine oil dipstick. 372 2009 F-250/350/450/550 (f23) Owners Guide, 3rd Printing USA (fus)