Forgot that I had these,found them cleaning the garage today. 2 cans of Mobil-1 5W-20 from 1978,2 cans of Castrol from 1968,cans say Castrol Motor Oil with liquid tungsten,1 can of STP from 1968,the cardboard can with aluminum top and bottom and a ring pull top to open the can. All look like new. Trying to decide whether to keep them or auction them on E-Bay. What would you guys do with these?