St. Louis — Construction is complete on two new $1.2 million Jiffy Lube centers in Sycamore and Springfield, Ill. Knoebel Construction served as the general contractor for the 3,500-square-foot automotive service centers and completed all of the pre-construction site work. Knoebel has been selected to build six additional Jiffy Lube locations in four Midwestern states for Stonebriar Auto Services, a Jiffy Lube franchisee. Those locations in Cape Girardeau, Mo.; Nixa, Mo.; Lake Hallie, Wis.; Manitowoc, Wis.; Jeffersonville, Ind.; and Machesney, Ill., and will complete in early 2021. Each location features …