1981 STP Gas Treatment Ad - Costs More. It should!

This is a 1981 ad for a STP Gas Treatment! The size of the ad is approximately 8.5x11inches. The caption for this ad is 'STP Gas Treatment. Costs more than gas-line anti-freeze. It should. It does more' The ad is in great condition. This vintage ad would look great framed and displayed! Add it to your collection today!