The AC Shutdown Habit: Smart Practice or Modern Myth?

It’s a piece of advice often passed down from parent to new driver: "Always turn off the air conditioning before you turn off the car." But in the age of advanced automotive technology, is this a crucial step for vehicle longevity, or merely an obsolete habit from a bygone era? The answer, like many things in automotive care, is nuanced. Understanding the "why" behind this practice reveals not just a single truth, but a set of best practices that can benefit your car, your wallet, and your comfort.