2009 Lexus IS 350 Owners Manual - Page 315

4-3. Do-it-yourself maintenance NOTICE n To prevent serious engine damage Check the oil level on regular basis. n When replacing the engine oil l Be careful not to spill engine oil on the vehicle components. l Avoid overfilling, or the engine could be damaged. l Check the oil level on the dipstick every time you refill the vehicle. l Be sure the engine oil filler cap is properly tightened. Engine coolant The coolant level is satisfactory if it is between the "FULL" and "LOW" lines on the reservoir when the engine is cold. Reservoir cap "FULL" "LOW" If the level is on or below the "LOW" line, add coolant up to the "FULL" line. 4 Maintenance and care 317