Specialist part · #7519 · 1 pts
For which of the following states of the engine should the oil level in the engine be checked?
aWhen the engine is on.
bImmediately after the engine is switched off.
cBefore the cold engine is started or at least a few minutes after switching it off.
Why?
Check the oil on level ground before starting a cold engine or at least several minutes after switching it off. The oil needs time to drain into the sump. Checking while the engine is running or immediately after shutdown can give a falsely low reading, so A and B are incorrect.