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That's very disappointing. However, if there was really just an issue with one or two people's posts, then why not migrate the forum without those posts? It seems quite silly to not want to migrate an entire forum due to some small differences. At the very least, a read-only archive site should be shared so we can go back and read old discussions we bookmarked.

Good memory! Worn tread is thinner tread, so it bends more easily. My Escape Hybrid's OEM Ecopia's were almost flimsy, and I did see a slight uptick in mileage in their last few thousand miles... but it was a very small shift just before I put the CC2 on in 11/21. This past Winter wasn't far off the past, but Summer sure is. Barely seeing 45 mpg, not 50 mpg. This is an even more analytical picture, because I do volunteer courier work to the tune of 1K miles per month (lower curves). Since you can't average MPG, I plot "fuel usage" so I can take averages. Two seasons on OEM overlap, but average of CC2 are 10% higher. And I should include some C-Max data... OEM Energy Savers vs. X-Ice 3, whose curves overlap. Snow tires don't have to hurt mileage, even if Winter will.