Like violins, cars announce their need for a tune-up by squeaking shrilly and leaking oil every time you play Mahler. Keep your ride purring pleasantly with today’s Groupon to Green Drop Garage. Choose between the following options:

• For $18, you get an eco-friendly standard oil change (a $40 value).
• For $50, you get a punch pass for four eco-friendly standard oil changes (a $160 value). <p>

The cordial car caretakers at Green Drop Garage respect cars, clients, and the environment as they refresh engine bellies with up to 5 quarts of re-refined and recycled motor oil. Green Drop’s pedigreed oil uses 85% less energy to produce than standard crude and can be upgraded to diesel ($55+) and synthetic ($80+) solutions for an additional fee. After restoring engine oil, mechanics inspect cars’ crucial mechanisms and report back to car owners with their findings. Together, the oil change and inspection last between 30 and 45 minutes, or the time it takes to figure out all of the anagrams for “Franklin Delano Roosevelt.”

While cars undergo fluid transfusions, owners can borrow bikes equipped with locks, helmets, and lights to run errands or practice double peg grinds in the parking lot. In addition to their Earth-conscious oil changes, Green Drop’s gas geniuses can also convert diesel engines to run on 100% vegetable oil (not included in today’s Groupon). Oil changes are performed by appointment only; customers should call ahead to schedule service.

Though Green Drop Garage sometimes features a discounted price online, this Groupon still offers the best deal available.