2015 Lincoln MKZ Owner Manual Printing 1 - Page 166

Fuel and Refueling Do not be concerned if your engine sometimes knocks lightly. However, if it knocks heavily under most driving conditions while you are using fuel with the recommended octane rating, see an authorized dealer to prevent any engine damage. • You may need to cycle the ignition from off to on several times after refueling to allow the fuel system to pump the fuel from the tank to the engine. On restarting, cranking time will take a few seconds longer than normal. With keyless ignition, just start the engine. Crank time will be longer than usual. Normally, adding 1 gallon (3.8 liters) of fuel is enough to restart the engine. If the vehicle is out of fuel and on a steep grade, more than 1 gallon (3.8 liters) may be required. The service engine soon indicator may come on. For more information on the service engine soon indicator, See Warning Lamps and Indicators (page 102). Refilling With a Portable Fuel Container WARNINGS Do not insert the nozzle of portable fuel containers or aftermarket funnels into the capless fuel system. This could damage the fuel system and its seal, and may cause fuel to run onto the ground instead of filling the tank, which could result in serious personal injury. Do not try to pry open or push open the capless fuel system with foreign objects. This could damage the fuel system and its seal and cause injury to you or others. Note: Do not use aftermarket funnels; they will not work with the capless fuel system and can damage it. The included fuel funnel has been specially designed to work safely with your vehicle. When filling the vehicle's fuel tank from a portable fuel container, use the funnel included with the vehicle. • • E161513 RUNNING OUT OF FUEL Avoid running out of fuel because this situation may have an adverse effect on powertrain components. If you have run out of fuel: 163 MKZ (), enUSA