Notice

NOTICE: We will not be processing any repairs until after Feb 26th allowing time for the weather to clear up so that things can get back on schedule. 

Occasionally the oil sender unit will short out internally and cause the needle to peg out but return to 0 when the key is turned off.
If you suspect a faulty sender, unplug the sender and inspect for oil leakage and monitor the gauge's reaction with it unplugged to see if you get the same reaction.