Hexanol doesn't blend with gasoline, and only partially with diesel and has to be mixed with ethanol. Ethanol is hydrophilic and corrosive, so maybe it could work as a diesel replacement. Butanol mixes with both diesel and gasoline, and is hydrophobic, as such current fuel transportation infrastructure can move butanol fuel with no modifications, and engines can run on a 50/50 mix of gasoline and butanol with no modification needed. It can be synthesized from petroleum distillates but it can also be grown through biomass. The octane rating is also comparable to gasoline and ethanol.