50Km/h speed bohot kam he, good milage k lie optimum speed 80 to 90 KM/H he, wese 15KM/L meri santro Islamabad mein karti he, yahan speed 90 to 100 KM/H tak bhi chali jati he, thats why 15. magar 50KM/H ki speed se aap agar constantly chala rahe hein tu itna bhi theek he. aur ap ne kon kon se sensors change kie aur change se pehle kia problem thi garri mein?