done test today again it starts up at cold start with 74lb/ 75lb cold start oil pressure.

the problem is its not maintaining this pressure, once you've driven it and left it to idle you will see the pressure at idle around 25lb.

then after say 5mins more driving the pressure needle will start dropping to 15lb and thats when i have just switched it off as its getting far too low for my personal liking.

could the pump fail that easily? would and external oil leak cause this say if the oil filter was abit loose and the car was drawing in air?

cheers in advance