Well like the title says, why is euro oil better? Why do you guys crawl over broken glass for your GC? I've always used Mobil 1 myself, never had a reason to change. I've also got a european car, a Saab 9-5 aero. Is there any reason I should use 0W-40 (as euro an oil as Mobil 1 makes) as opposed to 5W-40 T&SUV? So what's the deal guys, convince me. Don't take this the wrong way, I'm really just curious.