doesnt matter what brand you use as long as you try using the same brand oil and change your oil and filter every 3,000 miles you should be fine.
“BMW reccommends Castrol.”
Check under the hood of I newer BMW’s and that’s what you’ll see on the oil cap. Also the newere BMW’s run synthetic from the factory and is used when you go in for an oil change but that is the newer ones. They also reccommend a 25000km oil change interval!
But I use castrol gtx 10w-30 year round in my teg.
eh, i didnt know they sell castrol gtx high mileage oil…hmmm…