just thought I'd post this as it may be useful to others. had interesting chat with toyota parts guy today. went in to buy some oil to top up. asked him for the 0w20 he said "honestly you should use 5w30 in my car. because its high mileage and out of warranty. he said he puts 5w30 in all cars that come in for service out of warranty. he seemed very genuine, i told him service manager in lexus dealership told me to always use 0w20, this was when I first bought car in 2019. never got good vibe of that lexus lad, toyota guy said yeah they will always tell u that because of the price difference. il be going with toyota guys advice next oil service.