Experimental study was conducted to test emissions of carbon monoxide (CO), unburned hydrocarbons (HC) and nitrogen oxides (NOx) using gasoline-ethanol blend (E85) as fuel in adapted regular gasoline automobile. The aim of the research was to assess capability of E85 adapted automobile to meet existing EC emission normative for regular inspection. The results were compared to emissions from use of regular gasoline. Automobile with production spark ignition engine was placed on roll type chassis dyno and tested at idle speed and two simulated driving modes - at 50 km·h-1 and 90 km·h-1. Original engine control module was replaced with programmable one to adjust engine operating parameters for different test fuels and conditions. Exhaust gas composition was analysed using Fourier transform infrared spectrometer AVL SESAM. HC and NOx emissions were reduced when E85 fuel was used instead of gasoline. CO emissions were increased at idle speed but reduced at tested driving conditions when E85 fuel was used instead of gasoline. From test results, it can be concluded that regular gasoline automobile, adapted to be fuelled by E85, will meet EC emission normative if stoichiometric air/fuel ratio will be maintained.