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.
1 From 2010 to 2012, CostHelper readers reported paying $138-$685 for a standard tune-up, at an average cost of $340. 2  For older vehicles, a 90,000-, 100,000- or 120,000-mile tune-up can cost $500-$1,200 or more, depending on the repairs and adjustments needed.