OK, I change the oil every fall when my one year service oil light comes on. That's 3 oil changes in 450 miles. What if I don't drive the Cascada next season, will I need to change oil again? I WILL get a service oil light on in the fall. Another "point-to-pondder" is the oil filter. The Cascada filter is a pain in the ..... to change. What could possibly be in it with 3 oil changes in 450 miles?