Bro the engine is the least of your worries, the engine is normally the most robust part of the car... just use any good oil and follow proper maintenance is ok already.
It's the other parts connected to the engine which most likely kaput first.

To me the cooling system is more important than the engine oil.. engine can run even if oil leaking... but coolant leaking, bye-bye engine.

My cars are 13 years and 8 years old respectively, no worries on the engine.. other parts hard to say, see luck.

If not sure, please change. Do not, I repeat, do not/never use only water in the cooling system despite what many unqualified mechanics tell you.
A mix of water and coolant is a must, the coolant has anti rust properties and prevent rust.

But you don't need to use 100% coolant lah... I know some manufacturer sell pre-mix, which are basically coolant already mix with water at correct ratio (can get expensive if you need many bottles)
Anyway i use 2-3 bottles of coolant and the rest i top up with water. But even 1 bottle of coolant i found good enough to prevent rust, normally i add extra 1 bottle to be sure.

delete.. double post

This post has been edited by unitron: May 19 2018, 08:21 PM