OK
@aamriq
Your info is totally wrong. Where do you get all this info from? first of all a 1000cc engine would generate less heat than a 1600cc engine because its smaller in size. Not so much difference like you would see in 4 or 6 cylinder.
By the way cng burns a lot cleaner than gasoline/petrol and reduces vehicle maintaince. Oil changes may not be needed before 20,000 km (12,000mi)
And... by cold I meant -20 -30 ..this is when oil starts to turn thick. Like in pak even in winter temps go down to -2 -3. Rgular oil is just fine. 2200 rs on synthetic oil.... I would never recommend that.
The purpose of oil is to lubricate engine and cut down on wear and tear in the engine. A regular oil would do just fine!
buy good regular oil like castrol and stick with it. You will thank yourself for sayin 600-700rs on every oil change.