CONCISE AND CLEAR | Two words: "Gasoline Only." People aren't going to argue with you. No gray area here.
BRIGHT AND VISIBLE | Make it obvious what goes what container.
AVOIDS CONFUSION | Mixing fuels can be costly or even dangerous. Make sure gasoline engines get gas and diesel engines get diesel by using appropriate signage in your fueling station and on your heavy machinery.
FLEXIBLE STICKER | Trucks, fuel tanks, pipes, and barrels all have curved surfaces that a rigid plastic sign can't conform to. These stickers adhere firmly to metal, plastic, and glass surfaces.