Dajielong can't afford to refuel.

It should be the internal problem of the car.

The reason why the car can't lift the speed is:

1, clutch slipping: when the accelerator is slammed, the vehicle speed rises very fast, but it can't rise, and the acceleration is obviously weak.

2. Poor oil quality: it affects the gasoline filter and oil circuit, which will lead to poor oil supply.

3. Throttle carbon deposit: Throttle carbon deposit will affect air intake, resulting in insufficient engine power.

4. Oil supply system failure: when accelerating rapidly, the vehicle speed cannot be raised normally as required.

5. Failure to control the oil pressure, fuel injection quantity or ignition timing as required: The oil pressure, fuel injection quantity and ignition timing during rapid acceleration are very critical factors.

6. There is something wrong with the spark plug and the high-voltage line.