With a full flow oil filter that is outside the block connected by hoses, the thought occurred to me that unless I completely change my habits and start paying attention to gauges, I am in danger of losing an engine. With a daily driver, I feel I am not alone in that most people wouldn't catch a sudden drop in oil pressure fast enough to save the engine. Water isn't bad because it usually gives you enough warning, but nonetheless...
A Piezo Buzzer connected to a pressure warning light circuit may not be that hard to devise. I haven't done any research on this yet, but has anyone had any experience with this sort of thing? Anyone interested in helping design it?