On a 2005 model Corvette costing $60,000 new, an oil change at a good GM dealership costs about $119.57 (currently estimated). However, because some Gen5 Corvettes have been production since 2009 and have regular maintenance schedules that include oil changes and other services such as a new spark plug every 12,000 miles or every 3 years, an oil change on a 2003-2009 Gen5 Corvette should cost about $66.75 (estimate).