I've had 205-50-15 Azenis on my Civic for about four months now, and I must say I'm very happy with the grip they offer. I have a few curiosities though, and I wanted to know if other people have experienced the same. First off, these tires don't squeal. They don't slide very often, but when they do, it's relatively silent. Second, my fuel economy has gone down significantly, like -8 mpg (I used to have super-economy tires on there). Have other people had similar experiences? (These are the RT-215's, not the newest azenis.)