I have seen in this forum and experimented it by my own SUV a 1995 Montero SR 6G74 engine with 230,000 miles, that this engine has serious smoke issues at every mileage. My SUV if I have the right engine oil level and leave it for about half a minute at idle speed It starts to smoke and smell (oil burning)like a hell. I haven't had time to dismantle the engine and look for the possible cause of it but I think that it can be or piston rings or oil seals, but searching for possible clues in this forum I readed something about a PCV valve.
Where can I start checking the cause of this oil burning?
Is there anything else in this engine that can cause this oil burning? Why does it burn oil only at idle speed? The first 1.5 liters of oil it burns it very quickly when at idle speed, then when the level of oil drops to about 3 liters it quite smoking. Why? I hope there someone who can help me out?