What should Camry 07 do if its fuel consumption is high?

If you really want to remove carbon deposits, the fundamental way is to remove the whole engine for cleaning, which is impossible. First, clean the throttle. I wonder if your car has been cleaned before. If it has not been cleaned, it is strongly recommended to clean it, which will greatly affect fuel consumption. Secondly, the next time you change the oil, change it to synthetic engine oil, and then drive it at low speed or high speed once or twice a week (3000