To check the engine oil level of a truck with the dipstick, what condition must the engine be in?

Question

DentroTest · Accepted Answer

To check the oil with the dipstick, the truck must be on a level surface and the engine stopped and cold, so that all the oil has drained down to the sump and the reading is reliable. With a hot or just-switched-off engine, part of the oil is still spread throughout the circuit and the dipstick shows a lower level than the real one. With a warm engine that is running, the oil circulates through the circuit and the measurement is not valid either.

To check the engine oil level of a truck with the dipstick, what condition must the engine be in?

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