No, it is crucial to use the correct type and specification of gear oil recommended by the vehicle manufacturer. Different transmissions and differentials have specific requirements, such as viscosity grades (e.g., 75W-90, 80W-90) and oil specifications (e.g., API GL-4, API GL-5). Using the wrong gear oil can lead to reduced performance, increased wear, and potential damage to the transmission or differential. Always refer to your vehicle’s owner’s manual or consult a professional mechanic to ensure you are using the appropriate gear oil for your specific components.