Check the air pressure. This will not only give you better gas mileage but it will help keep tread wear even. Over inflation causes the center of the tire to wear out first. Under inflation causes the outside edges to wear first. This is critical to increase tire life. On the side of the tire the proper PSI will be stamped.
Rotate the tires every 7500 miles. This will greatly reduce uneven wear. Not rotating will severely reduce the life of your tires. Eventually they will cause the car to shake and pull to one side as you are driving down the road.
Fix worn suspension parts. This will cause the vehicle to pull to one side while driving, forcing you to correct the steering. Front tires that are worn on one side, are an indication of worn steering parts. To check the parts raise the front end of the car with jacks. Place one hand on the front and one on the back of the tire. Push the front in and out. Do the same for the top and bottom. The tire should move less than 1/8 inch in any direction.
Replace worn shock absorbers. Tires that have strips worn completely across the tread are a sign of bad shock absorbers. This will eat your tires fast. To check the shock absorbers push up and down on the fender fast. Get the car bouncing. Stop and count how many times the car goes up and down. It should stop on the 3rd cycle.