Engine oil Castrol or OEM Toyota

I think you will find out Castrol EDGE® Euro Car 5W-40 A3/B4 Full Synthetic is a better all around oil then and oil I’ve owned Volkswagen all my life and that’s all I’ve ever run in my vehicles never had a problem and if you want to run the 10,000 miles between oil changes this oil will handle it

I've always run Castrol with no issues. The biggest thing is to make sure that whatever oil you use meets the spec required by your engine.

I suggest you to use 5W40. I have a Toyota Auris and i change them every 7.500km without filter change and at 15.000 km with filter change. In my city at summer the temperature is about 40°C on summer and I have 257.000 km. I haven't any problems till now. My engine running smooth and never burned oil.

I use Castrol GTX full-synthetic 10W-40, as I live in Texas where the average temperature is hotter than the rest of the US and oil weather varies drastically. During the summer, I've considered bumping up to 15w-40 due to how hot my startup temps are on a "cold start".

I put castrol, engine sounds better to my liking, anyway make sure to check the user manual for the EXACT OIL CAPACITY AND TYPE

I’ve always used castrol edge on my old cars, and the oil comes out cleaner every time I do an oil change. That’s been my experience

High mileage oils like Castrol edge have more detergents than other oils, not a marketing gimmick.

Change my e90 n52 every 15k, castrol titanium 10w-40. blackstone reports confirm the oil still meets spec with plenty of detergents left. Showing no signs of wear at 170k.

I plan to run Toyota oil in my rav4. In the past, I would have never considered running OEM oil and I would tell most people it's a waste of money to do that. However, I've seen a few reports showing Toyota 0w-16 as having more than 700ppm of molybdenum in it, and it isn't from assembly lube used when putting the engines together.

I personally used to run mobil 1 0w-40. as you said its super thin and seemed to just barely get the job done. Recently switched to castrol SLX 5w-30 and I am decently pleased with the first two changes.