Your car relies on you to maintain it regularly and not to gun it across any rivers, even if there are free Thickburgers on the opposite bank. Keep your vehicular promises with today's Groupon to Metro 25 - Firestone in Livonia. Choose between the following options:

• For $36, you get three full-service oil changes (a $25 value each), three tire rotations (a $15 value each), and a complimentary 21-point inspection (a $120 total value).
• For $36, you get $80 worth of automotive products and services.

Metro 25 - Firestone's technicians maintain auto health with a bevy of repair and maintenance services. Attentive car parents treat their charges to automotive products and ensure autos stay in getaway-car shape with one of the shop's quality services, including a thrust-angle wheel alignment ($39.99), which gets a vehicle's innards working in unison, decreasing stress and increasing gas mileage; an air-conditioning recharge service to evacuate and tune up cooling systems with up to 1.5 pounds of Freon to recover lost efficiency ($129.95+); or a thorough brake service ($99.95+) to prevent autos from skidding like an empty jar of peanut butter resting on the skin of a timpani during an orchestral performance.

Alternately, drivers may soothe the dry throat of their autos' engines with three full-service oil changes, replenishing a coughing and sputtering car with up to 5 quarts of conventional jalopy juice. Then, a complimentary 21-point inspection aims to alleviate ailing autos, as a trained technician assesses vehicles from the tie rods to the wipers and the washers, stopping along the way to ascertain exhaust functioning, measure light illumination, and test the battery for proper functioning. Lastly, a tire rotation aligns all four road-huggers for even tread wear and maximum skid-mark payoff from donuts in the parking lot.