The podcast episodes on "Past Gas" highlight the importance of motorsports safety, with a particular focus on the contributions of individuals like Junior Johnson and the Arfons brothers.

In the episode "Past Gas #244: Junior Johnson: The Whiskey Smuggler Who Revolutionized Racing," the podcast delves into Junior Johnson's advocacy for safety improvements, such as the introduction of roll cages and fire suits, which revolutionized the sport of stock car racing.

Similarly, the episode "Past Gas #242: How These Feuding Brothers Traded 500 mph Records" explores how the Arfons brothers, in their pursuit of land speed records, prioritized safety features like overhead roll cages and parachutes for stopping, which played a crucial role in advancing safety standards in motorsports.