When should a diesel engine crankcase oil level be checked to produce the most accurate reading?
A) engine running
B) immediately after shutdown
C) 10 minutes after shutdown
D) weekly

Question

Quizplus · Accepted Answer

The most accurate reading of a diesel engine crankcase oil level is obtained 10 minutes after shutdown. This allows the oil that was circulating in the engine during operation to drain back into the sump, providing a more accurate measurement of the oil level.

When Should a Diesel Engine Crankcase Oil Level Be Checked