Europe has a much higher percentage of synthetic use which is why most European cars come with 10k-15k mile OCI. As everyone knows, switching to synthetic with a higher OCI will save the environment. Even if most of the used oil is recycled, it still takes a lot of energy to re-refine it and most of that energy still comes from burning fossil fuels.
It's not just about extended OCI, it's also about decreasing wear @ cold start up. Considering how cheap full synthetic oil is in the USA, I don't see why people would stick to dino unless the engine is burning a lot of oil (in which case it should be fixed anyways).
Walmart has 5qt jugs of synth for $22 right? Aren't conventional 5qt jugs around $15? This makes synth around 46% more in cost than dino, but you can easily extend the OCI by more than 50% and still have the cold start benefit, not to mention saving time/money by changing oil less often.
...No wonder 66% of the North American PCMO market is ruled by pure dino.
Would you say that's a bad thing? If so, why?