New focus plus 93 or 97

I think it is better to add 97 to the running-in period of new cars, and then add 93 after the running-in period. Also, it is best to add PetroChina. Sinopec's methanol gasoline is not resistant to burning and is not strong. When I picked up the car, I just added 440 yuan's 97, and now I have run 300 kilometers, showing that the remaining mileage is 620 kilometers, which means that a tank of oil can run more than 900 kilometers. My car is 1.6. Although you can't trust the driving computer completely, you can also make a reference.