I am getting a 335i convertible BMW and it used synthetic Castrol oil. The normal operating temp according to my manual is 210-300 degrees F.
Normal temp will be between 240-255 F.
BMW says this will not shorten engine life.
I am old school and thought anything over 210 was a killer on oil. Also BMW uses the extended oil changes (15K) since they are changing the oil until it hits 50K then it is my responsibility.
I will be changing it well before 15K per change but I wanted some SAE or other tech pubs to help me understand how this elevated oil temp can be acceptable.
Looking for help on synthetic oils versus engine oil temp and oil life.
Thanks
Normal temp will be between 240-255 F.
BMW says this will not shorten engine life.
I am old school and thought anything over 210 was a killer on oil. Also BMW uses the extended oil changes (15K) since they are changing the oil until it hits 50K then it is my responsibility.
I will be changing it well before 15K per change but I wanted some SAE or other tech pubs to help me understand how this elevated oil temp can be acceptable.
Looking for help on synthetic oils versus engine oil temp and oil life.
Thanks