Generally, it is recommended to use '40' engine oil.
You don't want to compromise lower fuel consumption at the expense of protection for your engine.
You can imagine how hard your engine has to work to run that air con compressor on a hot sunny day at above 35 degrees temperature outside, even worse if car is stuck in traffic jam and there is no air to cool the engine.
And Latio does not have engine temperature gauge.
What happens if the red "high temperature" bulb in your dashboard blows or is not working when your engine is overheated?
