1955 Gulfpride H.D. Select Motor Oil Ad - "Why Pay for 'Shrinking Horsepower'?"

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About this Vintage Print Ad

This advertisement promotes Gulfpride H.D. Select Motor Oil, emphasizing its ability to prevent the loss of engine horsepower as cars age. The ad explains that harmful deposits can build up in engines, reducing performance, but Gulfpride H.D. Select is specially formulated to avoid this 'shrinking horsepower.' The oil guards against power-robbing deposits and carbon that can cause engine knock and pre-ignition, helping maintain new-engine horsepower and performance for thousands of extra miles.

Brand: Gulf
Product: Gulfpride H.D. Select Motor Oil
Tagline: Why Pay for 'Shrinking Horsepower'?
Publication: The Saturday Evening Post
Year: 1955

Objects in the advertisement: man, horse, sulky cart, motor oil can, car

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