Question 1157 · Truck theory test
When is it recommended to use coolant?
Pick an answer to test yourself.
Correct answer
All year round.
Official explanation
The purpose of coolant is to keep the engine cool during operation. Coolant is usually a mixture of water and antifreeze – this ensures that the engine is kept cool and that the coolant does not freeze in very cold weather.
- Topic
- Technical matters · Vehicle Mechanics
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- This question also appears in the bus theory test.
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