Domestic brands have the most American-made content in the U.S. according to a new index released by American Universityâs Kogod School of Business.
A mechanic can clean or replace spark plugs during a tune up. Most new cars have platinum spark plugs which don't need to be replaced as often as traditional spark plugs. Mechanics can replace a dirty air filter during a tune up. A tune up includes checking and topping off an vehicle's fluids. A tune up is a relatively simple job that some people prefer to do themselves.
Lots of things have changed in recent decades when you talk about the tune-up.. Back when the phrase was coined, you had to get under the hood with screwdrivers and do things like adjust ignition points, replace condensers, set engine timing and change your spark plugs.