My '97 Coach has a 3126 CAT and Allison 3060. After a long drive at freeway speeds when I slow down to city street speeds and then come to a stop at a light, sometimes I get either a Low Oil light or Low Oil Level light along with a warning chime. The light goes off and the warning chime stops after a few seconds. The gauge also reads low.
This has gone on since I have owned the coach. I have had three oil and filter changes so far. Oil testing shows all normal and no evidence of wear. Engine has only 45K miles. I called CAT some time ago and they said that it should not be a problem as the engine will stop if there is no oil pressure.
I think it might be a bad sending unit. I don't see where the sender is located on the passenger side or I just don't recognize it.
I am also going to install a mechanical gauge and see what that reads compared to the dash gauge.
I have never had a CEL come on and never had the engine de-rate or stop running.
Any ideas on what could be the problem and where the sender is located?