I'm gonna be doing a lot of cold starts (-20'c) in Canadian winter and my current castrol syntec 0w-40 is due for a change. Currently there are no 0w oils on sale near where I live. I only see 5w-30 dino oils on sale like pennzoil high mileage, castrol gtx hm and valvoline maxlife hm. penzzoil yellow bottle is like $3.5 a L. german castrol or 0w-40 would cost me $60 taxes in! i do a lot of traveling so my oil change intervals are almost every 60 days. so it's good if i save money on my oil changes (student budget). car is a 2009 subaru impreza 2.5L with 100k miles.