2008 Ford F250 Owner Guide 4th Printing - Page 5

Introduction SAFETY AND ENVIRONMENT PROTECTION Warning symbols in this guide How can you reduce the risk of personal injury to yourself or others? In this guide, answers to such questions are contained in comments highlighted by the warning triangle symbol. These comments should be read and observed. Warning symbols on your vehicle When you see this symbol, it is imperative that you consult the relevant section of this guide before touching or attempting adjustment of any kind. Protecting the environment We must all play our part in protecting the environment. Correct vehicle usage and the authorized disposal of waste, cleaning and lubrication materials are significant steps towards this aim. Information in this respect is highlighted in this guide with the tree symbol. BREAKING-IN YOUR VEHICLE During the first 1,000 miles (1,600 km) of driving, maintain speeds below 70 mph (113 km/h) and vary speeds frequently. This is recommended to give the moving parts a chance to break-in. Do not tow a trailer or use your vehicle to snowplow until it has been driven at least 500 miles (800 km). Refer to Trailer towing in the Tires, Wheels and Loading chapter for more information on towing a trailer and Snowplowing in the Driving chapter. Do not add friction modifier compounds or special break-in oils during the first few thousand miles (kilometers) of operation, since these additives may prevent piston ring seating. See Engine oil in the Maintenance and Specifications chapter for more information on oil usage. 5 2008 F-250/350/450/550 (f23) Owners Guide (post-2002-fmt) USA (fus)