If Dorothy had never changed the Tin Man's oil, the Wizard probably would have just thrown away his spare heart. Show your car you have a heart with today's Groupon: for $22, you get a warranty-approved oil-change package with a filter change and a 30-point inspection, at H&D Lytle Automotive in Nepean (a $44.95 value). For more than 40 years, H&D Lytle Automotive has kept autos running soundly through all seasons with quality maintenance services. During a warranty-approved oil change, H&D Lytle’s licensed service techs replace old, worn-out oil with up to five litres of fresh-faced young fluid, straight from lubricant college and ready to take on the heat, dust, and incredible pressures of today's high-octane internal-combustion world. To help new oil adjust to its new job of safeguarding precious moving parts, gaskets, and various shafts, a fresh oil filter is included. The shop’s mechanics then perform a thorough 30-point inspection to assure the buggy is completely road worthy.