10,000 miles in 9 months. Weather conditions range from freezing rain to over 100 farenheit. 5 speed standard transmission Toyota Camry. I often wind out the gears to 5000 RPM. I have been buying tires since 1962. General Altimax RT could be the best tires I have ever had on the 20+ vehicles I have owned. Thick, deep tread makes for solid grip under all conditions (I don't live where there is snow). Deep tread pattern picks up little rocks, but doesn't seem to affect wheel balance at all. Tires will take up to 51 PSI according to label on tires. I put 50 PSI in them 9 months ago. They have lost 5 lbs of air pressure in 9 months - 10,000 miles. All are at 45 PSI now. I have never had to add air. Hard ride, but I like it that way. No noticable wear at all on tires. Only drawback is diminished gas mileage. I used to get 26 MPG in city driving with Michelins, now I get about 21 MPG in city driving. I push this 4-cylinder stick-shift Toyota pretty hard. BTW: The Toyota Camry is the most reliable car I have ever owned. Just had it painted and will drive it until the wheels fall off.