Quote Originally Posted by jvnj View Post
Thank you for your response Sir Rusem. I'll have it checked by a mechanic ASAP. I'm just thingking, of what possible causes of the "Low oil pressure" be, can it be a clogged suction strainer, Mechanical pump, or the oil pressure switch itself? I just replaced the oil and oil filter a month ago and it seems still has the same indication.

Thanks for your reply, Chief!
  1. Wrong oil grade
  2. Faulty lubrication system, check strainer and suction pipe for cracks, weak oil pump, etc.
  3. Worn main and/or connecting rod bearings, worn out crankshaft journals

Take an oil sample from the crankcase and check for metal particles. Worn crankshaft bearings will cause an oil pressure drop. You can temporarily install a mechanical oil pressure gauge to see your true pressure.