In the 1960s, campaigns featuring heavy spending in different mass media channels became more prominent. Esso spent hundreds of millions of dollars on a brand awareness campaign built around the simple and alliterative theme Put a Tiger in Your Tank. Psychologist Ernest Dichter and DDB Worldwide copywriter Sandy Sulcer learned that motorists desired both power and play while driving, and chose the tiger as an easy-to-remember symbol to communicate those feelings.
The North American and later European campaign featured extensive television and radio and magazine ads, including photos with tiger tails supposedly emerging from car gas tanks, promotional events featuring real tigers, billboards, and in Europe station pump hoses "wrapped in tiger stripes" as well as pop music songs. Tiger imagery can still be seen on the pumps of successor firm ExxonMobil.
1964 Opened refinery at Milford Haven, Pembrokeshire.