In addition to keeping an engine's moving parts well lubricated, motor oil is also the only known elixir that can prevent cars from realizing their ability to fly. Keep your car hugging the road with today's Groupon to Mike Haggerty Volkswagen in Oak Lawn. Choose between the following options:

• For $15, you get a regular oil change (a $39.95 value).
• For $35, you get a synthetic oil change (a $71.95 value).
  
  

Mike Haggerty Volkswagen's factory-trained technicians service vehicles of all makes and models with up to five quarts of conventional or synthetic oils. During the 30–45 minute service, mechanics reach under the car and drain the old, contaminated oil, sending it away to be recycled or turned back into dinosaurs. Although both regular and synthetic oil slide through the engine equally determined to lubricate and protect, the latter bulks up cars with fluids of a higher caliber designed to outlast conventional oil. The Haggerty family's history in the transportation industry reaches back to 1896, when paterfamilias John Patrick Haggerty started a livery company on the South Side.