The military police are after motorists who have not changed their oil in this World War 2-era ad from the 1940s that mirrors nationalist propaganda.
The U.S. Armed Forces commisioned this 1940s illustration which billed these handsome gents as "The Best Dressed Men In Town". Imagery with the feel of fashion illustration was often used to make a military career look attractive to young would-be recruits.

Chesterfield Soldiers of the 1940s from a series of ads in my collection.
I hear it brings all the sailors to the Navy Yard. That's right, it's better than yours.
The people who designed this ad sure approached the nutrient-laden power of fresh grapefruit juice from an odd (and hateful) angle. It only served to perpetuate the villification of the Japanese (and subsequently Japanese Americans) during World War II. Now that we are 65-odd years past the date where this is acceptable in advertising, it stands as an alarming case study in how acceptable bigotry (latent or blatant) was in print media.