2005 Subaru Legacy Owner's Manual - Page 512

Maintenance and service a bad smell, smoke, and/or a fire. If you check the oil level just after stopping the engine, wait a few minutes for the oil to drain back into the oil pan before checking the level. To prevent overfilling the engine oil, do not add any additional oil above the upper level when the engine is cold. In 2.5-liter-engine models, the dipstick has a notch above the upper level. Just after driving or while the engine is warm, the engine oil level reading may be in a range between the upper level and the notch mark. This is caused by thermal expansion of the engine oil. A B UBB576BB 3.0-liter models A) Upper level B) Lower level 4. Pull out the dipstick again and check the oil level on it. If it is below the lower level, add oil to bring the level up to the upper level. ! Changing the oil and oil filter Change the oil and oil filter according to the maintenance schedule in the "Warranty and Maintenance Booklet". The engine oil and oil filter must be changed more frequently than listed in the maintenance schedule when driving on dusty roads, when short trips are frequently made, or when driving in extremely cold whether. 1. Warm up the engine by letting the engine idle for about 10 minutes to ease draining the engine oil. - CONTINUED - " Use only engine oil with the recommended grade and viscosity. " Be careful not to spill engine oil when adding it. If oil touches the exhaust pipe, it may cause 11-13