The accelerator of a car falls into bars, plastics and other small things. Can the engine burn engine oil?

It depends on the size of what you're getting into and your own luck.

The best result is that these things are broken and discharged from the exhaust before causing great harm, causing slight scratches on the cylinder and slight blockage of the catalyst;

It is also possible that debris gets stuck between the valve and the seat ring and the valve cannot be closed;

If you are unlucky, this thing may be caught between the piston and the cylinder, causing serious cylinder pulling or even cylinder locking. The most serious consequence is that the engine is basically scrapped.

In short, this process is uncontrollable, and everything depends on personality. Amen.