Engine oil changed (every 6k miles which works out to be twice a year for me). This time I used Valvoline 5W30 Full Synthetic with MaxLife Technology. It has special seal conditioners rejuvenating seals within the engine block to help prevent oil leaks. This should buy me more time before I replace the valve stem seals.

Oil available at Walmart for $23 for 5 quart container.

Valvoline® Full Synthetic with MaxLife Technology Motor Oil : Product Catalog - Valvoline ®

Attached Images

 

__________________
'05 E53 X5 4.4i, '97 E39 528, '07 E92 335i, '16 F86 X6M.