I'm also currently about to replace my OEM Primacy MXM4 235/45 R18 98W XL (ExtraLoad) GreenX T1 tires. Bought a dealership car with approximately 4,500 miles on it. Currently, at 55,159 miles. Not much tread left. Lifetime stats show average 264 Wh/mi. Most mileage is highway by far. Many...