An old oil can I rediscovered on one of my shop shelves:
"Heart cuts"?? So oil is like cuts of meat? Misleading advertising at its best.
The Cities Service Company was founded by Henry L. Doherty in 1910 as a supplier of gas and electricity to small public utilities. Under his helm it expanded well beyond this, finding and opening many of the major US oilfields. In 1927, the company introduced "Koolmotor" high octane gasoline, and "Koolmotor" engine oil. The company became known by its present name, Citgo, in 1965.