Ethanol is a fuel considered renewable and can be used in hybrid concepts in internal combustion engines with electrification, especially for Latin American markets. A strategy to improve these concepts could be the use of lean-burn combustion, which is an effective way to improve the fuel economy of the spark ignition engine and, at the same time, acquire low pollutant emissions. However, it is complex to obtain these improvements, because lean combustion has low rates of reaction, extinction and misfire cycles, causing instabilities in the operation using this strategy. The difficult is increase when the lean combustion is associated to ethanol commercial fuels and direct injection operation. Thus, the objective of the present work is an experimental analysis of direct injection lean-burn combustion with commercial fuels used in Brazil, particularly hydrous ethanol (E95W05) and gasoline-ethanol blends (E27G73). The experiments were in an optically accessible spark ignition engine and assess their effects correlating on engine stability, performance, flame morphology, and exhaust emissions. The study was focused on the stoichiometric (?=1.0) to a lean mixture until reaches their inflammability limit, which are ? = 1.5 for E95W05 and ? =1.7 for E27G73. In order to pursue this objective, all experiments were set to reach 50%MFB at the same crank angle (AI50), defining a criterion for the spark timing adjust to compensate the lower flame propagation speed for leaner combustion. The results are based on three analysis: optical - from flame propagation images post-processing, thermodynamics - from the in-cylinder pressure measurements and exhaust gases concentration. In general, the results indicate much more flame propagation instabilities for E95W05; associated to the lower flame propagation speed observed for this fuel. The operations with E95W05 for the same thermal power input respect to E27G73 need 30% mass of fuel with heat of vaporization three times higher than the other fuel; therefore, the cooling charge during the direct fuel injection produces lower combustion temperatures and as consequence lower flame propagation. Additionally, to the lower temperature, the higher presence of unburned ethanol in the exhaust gases when the combustion become leaner for E95W05 is one of the factors that reduce the engine performance using this fuel. It was also observed higher emissions for CO and unburned hydrocarbons using E95W05, and reduction of NOx. Broadly speaking, the results of the present work showed that special attention is need for the use of commercial fuel with high quantity of ethanol in spray guided direct injection engines, especially in lean burn combustion, to do not compromise the performance and pollutant emissions.