2008 Ford F250 Diesel Supplement 4th Printing - Page 37
2008 Ford F250 Manual
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Maintenance and Specifications Biodiesel use may affect the recommended oil change intervals. Refer to the Special Operating Conditions section in the schedule maintenance guide for more information about oil change intervals and other maintenance when operating on biodiesel. Biodiesel fuel is a product that has been converted from renewable fuel sources, including vegetable oil, animal fat and cooking oil. Raw or refined vegetable oil, animal fat, cooking oil or recycled greases should not be used. Do not use home heating oil, agricultural fuel or any diesel fuel not intended for highway use. Damage to the fuel injection system, engine and exhaust catalyst can occur if an improper fuel is used. Do not add gasoline, gasohol or alcohol to diesel fuel. This practice creates a serious fire hazard and engine performance problems. Fuel quality It should not be necessary to add any aftermarket additives to your fuel tank if you use a properly formulated diesel fuel that meets the ASTM D 975 industry specification. Aftermarket additives can damage the injector system or engine. Repairs to correct the effects of using an aftermarket product in your fuel may not be covered by your warranty. Do not blend used engine oil with diesel fuel under any circumstances. Blending used oil with the fuel will significantly increase your vehicle's exhaust emissions and reduce engine life due to increased internal wear. Many of the world's automakers approved the World-wide Fuel Charter that recommends diesel fuel specifications to provide improved performance and emission control system protection for your vehicle. Diesel fuel that meets the World-wide Fuel Charter should be used when available. Ask your fuel supplier about fuel that meets the World-wide Fuel Charter. Diesel fuel conditioner Additives that will improve fuel cetane numbers may be used to verify/enhance fuel quality. Use Motorcraft Cetane Booster & Performance Improver, PM-22-A (U.S.) / PM-22-B (Canada) or equivalent. The customer warranty may be void from using additives that do not meet or exceed Ford specifications. Do not use alcohol based additives to correct fuel gelling. This may result in damage to the fuel injectors/system. Use Motorcraft Anti-Gel & Performance Improver, PM-23-A (U.S.) / PM-23-B (Canada) or 37