has been running fine , including last night .when i started it up today , the oil light went out after the engine fired like it usually does .after wiping the seat down , i noticed the oil light had come back on .shut it off to reset it because ever since i have owned it this has happened off and on .light stayed out until i got to the end of my driveway and then it came back on .so i parked it and took a car to work .drained the oil tonight to find about a dozen black shards of metal came out of the block drain .most of them are random shapes except one is about 1/4" long ,1/8" base and tapers at the top like a triangle. this is a 2009 gs se5 with 7700 km on it .what does the oil pump look like ? is it a gear pump ? i need to know what might have grenaded in there .and the oil has been changed regularly , usually amsoil but ctc was out so last change i used a jug of BRP i bought at the dealers a while back .