Unlike a bed sheet change, an oil change shouldn’t be performed by grandma or in the middle of a downtown intersection. Sleep tight knowing the pros did it right with today’s Groupon: for $13, you get an oil-change package (a $27.99 value) at J&C Auto.

J&C Auto makes cars feel like their younger, more limber selves with the aid of ASE-certified technicians—capable of handling a broad spectrum of vehicular fixes. Along with putting air into tires and evicting gelatinous wrench-eating blob creatures from trunks, oil changes help to avoid car malfunctions. J&C will first drain each ride’s used crude and fill ‘er up with a fresh batch of oil, retiring the old stuff to an upstate farm where lubricants are given a loving home inside combine harvesters and mechanical scarecrows. Next, J&C will replace the oil filter, which keeps a landship’s inner flow clear of disruptive flotsam and jetsam, before topping off transmission, windshield-washer, and power-steering fluids. Finally, a thorough safety inspection ensures drivers enjoy peace of mind during upcoming road trips through America’s deadliest ghost towns.