If automotive travel is America's lifeblood, then the highways are its veins and tar is its gross scabs. Extend a metaphor into overdrive with this Groupon.
$39 for an Emission System Cleaning ($79.99 Value)
During the automotive cleansing, techs eradicate carbon deposits by scouring the fuel pump, lines, injectors, intake valves, and combustion chamber. This service, recommended every 15,000 miles, is designed to remove moisture buildup that can limit vehicular power.
Though Oil Can Henry's sometimes features discounts online, this Groupon still offers the best deal available.