I have a 2004 Saturn Ion. Have not driven it much until 2015. After two years, and an odometer reading of 38,000 miles, the engine block started to leak. I went to the autoparts store and bought a bottle of Lucas Oil Stop Leak. PROBLEM SOLVED! Thank you Lucas because when I saw the leak, and knew how much it would cost to pull the engine to replace the gaskets. Not one single drip two weeks later. -Gino T.