I have a Toyota Vitz, 2010-model, 1L, which has been driven around 67000km approximately. I'm looking to find a brand and type of engine oil that will be best for the car. After having read through various threads here about engine oils, I'm confused about which one I should go with. People here have suggested Shell, Caltex, Zic, Mobi, and others, which only adds to my confusion.
So, I wanted to ask simply: Is Zic 0W a good choice for the engine? Or should I go for Zic A+?
Also, if I use either of the Zic oils I mentioned, what should be an safe drain interval? After how many KMs should I change the oil?