I have a relatively new Craftsman 60 gallon compressor with an oil lubricated pump. The owner's manual calls for synthetic, non-detergent air compressor oil. That is not so easy to find. Sears does not stock it. I have tried Lowes, Home Depot, Tractor Supply, Northern Equipment, and all of the chain auto supply stores with no luck. Do any of you have any suggestions? Do I really need to run the synthetic oil?
