robin.smit@gmail.com; Tel.: +61-46-7721-823; Fax: +61-73-1705-797 Received: 11 February 2020; Accepted: 10 March 2020; Published: 16 March 2020 Abstract: This study explores the correlation in measured hot running NO/CO2 ratios by a remote sensing device (RSD) and dynamometer testing...