How often should I change a fuel pump in my NA Miata? Considering the unique characteristics of this classic vehicle, it becomes imperative to contemplate the frequency of fuel pump replacement to ensure optimal performance. Is there a recommended interval for replacement based on mileage, or should other factors such as age and driving conditions come into play? Given that fuel pumps can deteriorate over time, what signs should I be vigilant for that might indicate an imminent failure? Could symptoms like sluggish acceleration, irregular engine behavior, or unexplained stalling suggest that the fuel pump is approaching the end of its operational life? Moreover, how does one determine whether to initiate a preemptive replacement or simply wait for failure? Is there any valuable insight regarding the longevity of aftermarket versus OEM fuel pumps that could influence my decision-making process? In an automotive context, can the age of the vehicle itself warrant more frequent checks on such crucial components? What insights can seasoned Miata enthusiasts provide on their personal experiences? Is there any consensus on best practices? Furthermore, how do environmental variables factor into the longevity of fuel pumps in the NA Miata?