Oil Leak

Have a shop check the engine for leaks and internal wear. It may be burning oil, or it's leaking externally and you are not seeing it (which can happen). Here are some shops in your area: http://repairpal.com/saturn-repair-in-saint-louis-missouri

recommend oil consumption test and compression test. each cylinder should be around 185psi. sounds like the pistion rings are carboned up if excessive oil is consumed without a leak.