2009 Lincoln Town Car Owner's Manual - Page 222

It may be necessary to add some oil between oil changes. Make sure you use a CERTIFIED engine oil of the preferred viscosity. Your vehicle's warranty coverage may not apply if engine damage is caused by the use of improper engine oil. Add engine oil through the oil filler cap highlighted in yellow. To add oil, remove the filler cap and use a funnel to pour oil into the opening. Be careful not to overfill the engine. Recheck the oil level after you finish adding oil. Changing the Engine Oil and the Oil Filter Refer to the Maintenance Schedule booklet for recommended intervals. Change your engine oil and oil filter according to these mileage and time requirements, whichever occurs first. WARNING Continuous contact with USED motor oil has caused cancer in laboratory mice. Protect your skin by washing with soap and water. 220