I've had to replace 2 wheel bearings on my '05 civic. Car has been flawless other than that. (140K miles, 45+mpg) I'm wondering if it isn't because of the beginning of my commute. I basically pull out of the driveway and onto a 70mph (very)rural highway. Could bringing the car up to 70mph in the first 1/3 of a mile possibly be shortening the bearing life, because they don't have time to warm up?