Silver State motor oil can

Item says sa - SB service a blend of pure Mid-Continent oil stocks Colorado petroleum products company Denver Colorado 80216 silver state is a registered trademark of Colorado petroleum products company don't pollute conserve resources return used oil to collection centers. My car needed oil and my uncle gave me this can of oil to place in my car however it will not work and he told me to keep the camp when I call the company the guy chuckled and said it was before his time he didn't know how old the can was but any information about this item would be interesting.