I just put 4 new Michelin Xradial DTs on my sentra. My daily commute is 200 miles right now. Previous mileage was 39-45 depending on driving speed on the highway and mixed city. Old tires were some old, very worn pirellis. The new michelins tires gave me 40-43 on day one. Day two it went up to a new best for FE @ 47.5, and now halfway through day three looks to be the same as day two. I had a fear that FE would be down with these but, at least they are safer. So far it looks like they will pay for themselves over the life of the tires (80K miles).
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