Most people understand that not using a product or service to it’s full potential is a waste of money. It reminds me of when my father or uncle would seem to exacerbate when I would not fill my car with premium gas. My little zippy hybrid car manual’s instructions recommended premium. The reason for their dismay with my lack of concern over gas type had to do with their own experiences.
My dad owned a mint 1967 classic black Porsche 911. For my uncle, it was all about the comfort of his car since he is 6 foot 6 inches tall, and has gone between Cadillac's and Lincoln's his entire life (that I can remember). Both my dad and uncle could add regular gas to their cars, but they knew it would not allow the car to perform at maximum levels and deteriorate the automobiles faster. My dad even went on to explain the ideas of the higher octane levels resulting in engine knocking and compression ratio. In high-performance vehicles, which have a high compression ratio, the engines are more prone to pre-ignition and this is why they can truly benefit from premium fuel.