I have e a 00 Mercury 90hp ELPT 2 stroke. s/n ot087666. I am paranoid about possible failure of the oil injection system. Is it feasible to install some kind of oil pressure switch in the oil delivery line so that if oil pressure drops an alarm is set off thus gving the operator time to shut down the motor before substantial damage? I'd the think that the most difficult thing would be to find a pressure switch that would fit a T in the pressure line.