SN Diesel Service is located in Concord, Ontario, at 221 Caldari Rd. To get here, take Highway 400 north to Rutherford Rd. Turn right (east) on Rutherford Rd until first set of lights (Jane) and turn right (south). About 1 km south on Jane take your second left, onto Locke Street, and then right on Caldari. Rd. You can't miss us.