Just got my Kumho eco Solus's on too... 175/70/13s as well. Got about half a tank in with them and pulled off my best tank since last fall... 53.4mpg. It's important to note last fall I had a very worn down set of old tires (wouldn't pass inspection), and now I'm near that on a brand new set of 11/32" tread. The vac gauge shows a slight increase in load to hold cruising over the old baldies. I like em so far, time will tell if they get better as they break in. I do notice a "shimmy" from tires only when driving on longitudinal-grooved concrete pavement. My buddy said a set of Fuzion performance tires did the same thing as well.
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