It's normal for asphalt driveways to sink a bit over time. But when your driveway repair has sunk to the point where it's 4 or 5 in. lower than your garage floor, it's time to fix it. If you don't ...

This will protect the asphalt pavement and the sealer from degrading. “If the pavement is already degraded from oil penetration, the only true fix is to remove the contaminated asphalt and ...