So I am 300 miles away from having to do an oil change on my 2015 n26 228i. I live in California, where weather can be as low as 30fº and as high as 107fº. I do a lot of spirited driving and will be changing my oil every 3-5k miles (Keeping my OCI short since I don't want to stretch out my timing chain.) On stock tune, just running an intake and catless downpipe at the moment if that changes anything.
Currently looking at using Rotella T6 5w-40 oil since that is what I used on my 07 335i (Does not have BMW LL-01 sticker since its a diesel type of engine oil, but very good oil for boosted engines.) Also looking at using Shell Helix Ultra 5w-40 since it does meet the LL-01 standards. Heard something about phosphorus in the T6 being able to clog up catted downpipes but that isn't an issue since I am catless
Any recommendations for a winter type of oil and a summer type of oil?
Best oil filter to use I presume is the Mann filter BMW uses.