Question 1109 · Truck theory test
What is a possible effect of over-filling the engine with oil?
Pick an answer to test yourself.
Correct answer
It could damage the catalytic converter.
Official explanation
It is essential that the vehicle’s engine is not over filled with oil as this can permanently damage the catalytic converter, which is part of most vehicles’ exhaust systems and removes up to 75% of the carbon monoxide, nitrogen oxide and hydrocarbons from the vehicle’s exhaust. Damaging this increase exhaust emissions.
- Topic
- Safe & responsible driving · Environmental Matters and Eco-Friendly Driving
- Also in
- This question also appears in the bus theory test.
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