Hi guys,
old thread but i was looking for oil change 1GD 2.8 and came cross this thread.... Being a lay man, all above formulas and chemistry went miles above me.

So i googled and came to know that based on the above chart, its more weather dependent, we have approx. 3-4 months C40+ temperature on the roads. 5W-30 means that it can tackle or manage low temperatures but 30 is not good enough for high temperatures specially central and south PK...As for thickness of the oil, first self or any self after few hours should give 2 min approx. to properly lubricate the engine parts before driving it off.
Thats what i understand unless i'm missing something?