Lexus vehicles in which 0w-20 synthetic oil is required have been approved for extended oil change intervals of 10,000 km/12-months. However, you should continue to check the car engine oil levels regularly and top up if needed.
Engines that recommend 5w-20 or 5w-30 mineral oil, but allow the optional use of 0w-20 synthetic oil will continue to require 5,000-km/6-month (whichever comes first) oil change intervals if the 0w-20 is used.
If the vehicle operation meets the standard criteria for "Special Operating Conditions" such as: driving off-road, on dirt roads, towing a trailer, making repeated short trips under 32˚F, or extensive idling; the engine oil must be replaced at 5,000 km intervals, regardless of what type of oil is used.