Ilario was one of the inaugural supporters of Adelaide United back when it started in the now-defunct NSL. Originally a member of 'The Stand' and then 'The Gate', Ilario was in ever constant behind the goals at Hindmarsh. Ilario was elected as Secretary of the Red Army in 2009 before taking over as President in 2010. Under Ilario's leadership, the Red Army won the Hyundai A-League Fan Group of the Year award in 2011. Work commitments took Ilario and his family to Melbourne in 2014 where he still supports the Reds from interstate. Ilario was inducted as a Life Member in 2017.