Fresh oil serves a variety of purposes, such as vastly improving a car’s performance, delicately pan-searing a trout, and gently extricating a person from tight leather pants. Allow autos to luxuriate in new lubricant with today's Groupon: for $65, you get an oil change, a tire rotation, and an engine-diagnostic test (a $160 total value) at Ming's Auto Repair in Allston.

Ming's Auto Repair pampers steely chariots of most makes and models with a painstaking diagnostic service and tune-up, leaving them in peak health and optimal performance condition. An oil change replaces charred fluids with up to four quarts of Castrol nonsynthetic oil, prepping parts to work together as smoothly as an army dressed in silk (a $35 value). Next, a team of vehicle virtuosos exorcizes engine demons and performs up to one hour of performance tests on horsepower hubs (an $85 value). The shop's seasoned techs will also rotate tires, leaving talented rubber artists free to carve muddy midnight masterpieces into neighbors’ lawns (a $40 value).