Thailand Driver's License Written Test Practice (2024 Edition)

This is a good practice test and also a good driver's memo.

How does CNG affect the engine if you use natural gas?

Question 373/396

It does not affect the engine
The engine wears out faster than using oil
The engine will be cooler than normal
The spark plug lifetime is longer than with oil

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Essential Tips for Safe Driving in Thailand | Road signs in Thailand

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