merchsa

I have a 2007 RX 400h with Michelin tires - performance baloney!! I have 21,000 miles on them and they need to be replaced. I have had tire rotation every 5,000 miles, and do a mix of city and highway driving, averaging 27.1 mpg. Since I need new tires, I don't want new Michelins if they are only going to last 20,000 miles, but I don't know what to buy. The tire dealers are recommending SUV/Truck tires for 65,000 miles. Will these degrade my performance? What to do???