Maybe this info will elevate yours mood:
1 Liter bottle Castrol TWS 10W60 ........ 37.83 Euro (US $59.02)
4 Liter bottle Castrol TWS 10W60 ........ 124.00 Euro (US $193.46)
[Official BMW Invoice, Spain]
As I heared the price for oil in USA is around $10 for 1 Liter? Is it true?