I guess that depends on how active you are moving around by the car :). The American cars needs to get filled every time you go around. My friend was filling the car with gas before he goes out with 20 Riyals and by the end of the day it is gone! The fill of the car for a Toyota Corolla costs me 34 Q.R and it lasts only for 4 days.This is for daily life so how about if you want to go to sealine or any other place once a week? You will fill the car and come back with a little in your car. You might be talking about the guys in City center who wash the cars for 8 or 10 Riyals but i was talking about the shops that clean the cars, they charge 20 minimum for cleaning the car.

It depends on how much do you use the car or what car do you have in the end. I was just calculating it with a little more expenses.

Best Regards for All