Note the lubrication bay in the background.
(click ad from 1939, via) It's Shell Ad Day on copyranter. Speaking of swelling, Shell Man is looking hott in his official Shell Man outfit, isn't he? Oh yeah, he's full service. "Bob, let's swing it into the garage, get out my tools, and see what we can do about greasing up those boners, OK?" related: auto repairs by Armani underwear model Clint Mauro.