The car started like a spark. What is the reason why it won't start?

I guess the throttle is dirty (washed), or the spark plug is not good (changed), or there is something wrong with the quality of the oil (changed the gas station). It can't be a circuit or battery problem, but to verify the above possible faults, it is recommended to open the engine compartment cover and check the battery connection points.

Another possibility is that there is something wrong with the oil.