Be careful not to over tighten your lug nuts!

A common site in your neighborhood auto garage is a mechanic
tightening up the lug nuts on your car with an impact wrench.
You hear the common screech of the impact wrench as it makes
quick work of the lug nuts. You also probably rarely see that
same mechanic actually use a torque wrench. Impact wrenches are
great tools but they can and will over tighten the lug nuts on
your car. At first that doesn’t sound like a bad thing. Tight is
good, right? Not necessarily. Most manufacturers recommend using
a torque wrench when tightening lug nuts. They will specify a
certain ft/lb to dial in on the torque wrench. This insures the
nuts are tightened properly. Over tightening can damage the
studs and possibly lead to a failure in the future. Here is what
happens. When the nuts are tightened, the studs will stretch.
This tension holds the wheels on to the rim. If you over tighten
the studs you can damage them and they could fail. The best
approach is to use your impact wrench to snug up the nuts. Then
go back with a torque wrench and tighten to the manufacturer
specifications. Next time you are having your tires rotated or
changed, make sure the mechanic uses a torque wrench and the
correct torque. Having the proper tools makes all the difference
and will extend the life of your car.