I love this scooter. At 693 miles I changed the oil and cleaned the oil screen. Also I replaced the transmission gear oil. I used Yamalube 10W40 on both the transmission and engine. After the service it runs smoother and quieter than originally. Although it will go about 72 mph, the fastest I have driven is about 65 mph. It is so much fun to drive the SMax to the grocery store or to pop out and pick up lunch or just to ride through town just for the fun of riding.