How often should I change differential fluid in my vehicle? Is there a specific mileage or time interval that I should adhere to, or do the recommendations vary based on driving habits and environmental conditions? For instance, does frequently driving in extreme temperatures or on rugged terrains necessitate more frequent changes? Furthermore, could you elaborate on the potential consequences of neglecting this crucial maintenance task? Are there any distinctive signs or symptoms that indicate the differential fluid is due for a change? Additionally, how do the different types of differential fluids on the market—such as synthetic versus conventional—affect the frequency of changes? In what circumstances might I consider changing the fluid sooner than the manufacturer’s guidelines suggest? Given the integral role that differential fluid plays in ensuring optimal performance and longevity of my vehicle’s drivetrain, what precautions should I take to ensure that I am proactive in maintaining it appropriately?