Cooling systems and evaporators are weak. Everything else is solid

Nope age does not matter. I’m 20 and in a g30.

https://www.walmart.com/ip/Castrol-EDGE-Euro-5W-30-A3-B4-European-Advanced-Full-Synthetic-Motor-Oil-5-Quarts/563245545

This is the oil I run in my B58. It is 5 quarts of nice LL-01 5W-30 for just $25!

If you want to experience the b58 if honestly say consider the 540i. When I was in the market they were going for similar prices as 330s. I have one and it’s quite the monster compared to my friend’s 330.

No worries Green and blue are relatively compatible. You’d be in trouble if you had put any other color in besides green/blue. You can drive to a shop to get it drained and swapped with no issues.

Thanks! Will do!

2017-2020 bmw 540i