I got Yamaha G5 in october 2008, I used this bike daily around 100 KM. Now total reading 51000 Km in 2.5 year. I have changed only rear tyre. I used to run bike with 70-80 kmph, I got mileage above 55 kmpl
If you use bike with 55-60 speed limit then you will get definately 60-65 kmpl mileage. I am very much thankful to YAMAHA. Remeber one thing do servicing at proper place. In first year I got so many problems with service center. Now I am servicing my bike at private servicing center. My Bike Number is MH-14, BN-6901. If you have any hesistation / or any queries please write mail to dnyaneshmankar@gmail.com.