This whiteout 2015 Freightliner toting a 5,000-gallon steel tank and Battioni/Chandler Vac BLW-210 Blower Package built out by Stephenson Specialty Trucks has been a workhorse for Shane Irwin and the rest of the team at Irwin Septic. Powering the rig is a 500 hp Detroit DD15 engine tied to a Allison automatic transmission. Used for septic and grease pumping, the truck features aluminum tool boxes, Rhino-lined tank and hose trays, all polished aluminum wheels, steerable drop axle, a 36-inch rear manway, a 6 inch dump and two 4-inch pump valves, LED work lights, a Garnet SeeLevel gauge and sight glasses
