ron 97 sure can take u further when we calculate base on litre basis..but when we compare let say rm10 ron95 with ron97, ron95 can go further..last time when ron97 was about rm2.10 if not mistaken, for the same amount of money, the car that i drove can get the same mileage as the ron95..now cannot already..have to mix like rm30 ron97+rm10 ron95 can get rm40 ron95 distance..just from my past experience..roughly..