The light has come on in the dash. I have 20w-50 synthetic and a fresh filter. No oil leaks, no over heating, dipstick shows full. Due to alternator problem, I thought the lovely Mrs. hunterson was reporting an low charge warning light. I just checked it out and it is oil light. It has run for awhil...

I would definitely stick with the 75kpa rated reservoir cap. The green 150kpa can over pressure your system in the older volvos and give you exciting repair tree explorations. My brief experiment with the high pressure cap led to failure of a three year old radiator at the reservoir hose junction. W...