1. 5000 or 10,000(mobil). but 6000-7000k duwanna puluvan toyota 0w-20 eka dala. man karala baluva. no issues. but not recommened
2. yes ( vic-932/934) oil filters danna oni. AC and Cabin filter eka conditions balala. normally after 20,000KM
3. OW 20 full synthetic ekak turbo nemei nam...