When pondering the longevity and performance of your vehicle, one might wonder: should I consider changing the transmission fluid after reaching a milestone of 150,000 miles? Is there a significant difference in the condition of the fluid at this stage compared to earlier intervals? How does the age of the vehicle and its maintenance history influence this decision? Moreover, what potential risks and complications could arise from neglecting to perform this maintenance? Could the transmission fluid still be effective, or has its efficacy diminished over time, perhaps leading to adverse effects on the overall transmission system? Are there specific signs or symptoms that might indicate the necessity for a fluid change at this juncture? It’s crucial to weigh these factors carefully and consult professionals. Could the answers to these inquiries ultimately ensure the longevity and efficiency of your vehicle’s transmission? What preventative measures can be taken to avoid costly repairs in the future?