hello there I have a diesel 1997 isuzu wizard that has been having issues. Last night I drove the car up the road when it suddenly started to rev quite hard and the oil pressure increased from 6 to 15. I pulled over waited a few moment the continued to drive it did it again went to gas station checked oil it was low.Drove home fine after that however today it has done it again what could be causing it.This happens suddenly [img]smileys/smiley6.gif[/img]