It was certainly recommended by the dealer service department! - Seth In a message dated 3/26/2012 6:28:27 A.M. Pacific Daylight Time, dkeillor at tconcepts.com writes: >From Kiplinger's Personal Finance magazine, April 1958: "A tuneup every 8,000 to 10,000 miles or once a year is recommended by many auto engineers." Dave Keillor