Ok, so my oil light used to flicker on at very low rpms which i wasn't too worried about, but about two weeks ago it started coming on more and more. It seemed like whenever the engine wasn't under a load and/or under 1500 rpm it would come on , so I checked the oil. It wasn't low but a 1/4 quart. Then did an oil change to 10W30 castrol edge to see if that would help. It didn't really change anything, but now the light seems to b on almost constantly unless its 2500+ rpms. Im running a 2001 trep se 2.7. also i dont know if this anything, but ive been driving it much less often lately (i got a company vehicle). 148000miles all original. And i realize water pump and everything need to b replaced or whatever but i'm looking for insight different from that hopefully. Thanks ahead of time!