In WWII after the invasion of France, Germany forced Citroen to build trucks to fuel the Nazi War Machine. Luckily the French had a clever plan.
Of course, the French wanted to beat the Nazis but it’s hard to outright sabotage while keeping your life in the process. The French cleverly mismarked the dipsticks in the truck they built for the Nazis.
Since the Germans were keeping a low oil level in their Citroens the engines failed and the whoelt ime they jsut thought the French sucked at building trucks.