I don't mean to be skeptical. But I often wonder if the dealership is using quality synthetic oil in my car during changes. Every customer who purchases a Toyota get oil changes for life. Can they afford to do that?

 

Ask the dealer what brand of oil they use. Toyota may call out a 0W-16 oil If so to date this weight is only made by name brand companies.

 

That's why I change it myself.

 

I changed only a couple of times at the dealer, did not complain about the quality, but basically, I change the oil myself. When I change the oil on my own, I am sure of its quality, I use Pennzoil Platinum Full Synthetic 0W-20, one of the best oils for me, by the way, who is interested, on this site https://davesoilchange.com/0w-20-synthetic-oil/ you can see the best 0W-20 oil, and choose an oil for your auto.