ph001 said:Why would you ever put the wrong grade oil in to start with though? BMW never specified a 0W oil for the N52.
No leak.MrPT said:That’s cool, but have you considered the possibility that there was a small leak before the oil change? Seems more likely.
https://applications.castrol.com/oilselector/en_gb/c/recommendation?data=0f43d3aaa4aeeba5f3cc8db4266e54fcph001 said:Why would you ever put the wrong grade oil in to start with though? BMW never specified a 0W oil for the N52.
Mr Tidy said:To be fair I've put 0W/30 Castrol Edge in my BMWs too for topping up - it's still LL04 so why would a wider range be an issue?
Mike6 said:You have moved to a thicker oil so as consumption has decreased it suggest you may have some engine wear. Is it a high mileage car.

Silverzedtom said:Bmw do spec 0w30 for the n52, It’s all that’s been in mine from the factory including dealer services.
Although I change it every 6 months I’ve never had to top up, I won’t take the zed if it won’t be warmed through, and don’t go above about 2.2k revs until it’s warm I have thought about changing at 50k miles though as I will be keeping the car for a while yet![]()
I poked my head in on here after taking the car out and noticed that when it was cold I seemed to be changing at around 2.2... thought it was odd when I read the thread!Smartbear said:Silverzedtom said:Bmw do spec 0w30 for the n52, It’s all that’s been in mine from the factory including dealer services.
Although I change it every 6 months I’ve never had to top up, I won’t take the zed if it won’t be warmed through, and don’t go above about 2.2k revs until it’s warm I have thought about changing at 50k miles though as I will be keeping the car for a while yet![]()
Hi, 2.2k revs sounds very specific-is there a reason for that exact figure? :?
Rob