About this Vintage Print Ad
The advertisement highlights Sinclair Aircraft Oil's role in lubricating American Airlines' DC-7 engines, emphasizing its reliability and quality. It mentions that 45% of aircraft oil used by major airlines in the U.S. is supplied by Sinclair. The ad also promotes Sinclair Extra Duty Triple X Motor Oil for cars, claiming it adds power and reduces engine 'knock'.
- Brand: Sinclair
- Product: Sinclair Extra Duty Triple X Motor Oil
- Tagline: 13,000 American Horses Protected by Sinclair Oil
- Publication: Life Magazine
- Year: 1956
Objects in the advertisement: airplane, horse, rider, oil can, car
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