variavel0=<b>ITHAMAR RIBEIRO RANGEL</b> - ita@epq.ime.eb.br IME
<b>Roberto Guimarães Pereira</b> - temrobe@vm.uff.br UFF
<b>Abstract.</b> The low solubility of ethanol in the diesel oil has motivated the study of blends using butanol like co-solvent. In this work, rheological parameters and physical and chemical properties were investigated. The blends were tested in engines as: MBB OM355/6A. The results obtained in dynamometer bench, the rheological and physical and-chemical properties are shown.
<b>Keywords.</b> Fuels, Rheology and Fluid Properties, Internal Combustion Engines.