A fuel or fuel blendstocks for jet, gas turbine, rocket, and diesel engines, particularly jet and rocket engines utilizing components of conventional petroleum not currently utilized for jet, gas turbine, rocket, and diesel fuels, such as benzene, butanes, butanes, and methyl tert butyl ether (MTBE) alkylated with aromatic moieties to make monoaromatics used in jet and diesel fuels. Additionally, a fuel having such monoaromatics has multiple desired properties such as higher flash point, low pour point, increased density, better lubricity, aerobic degradability, reduction in toxicity, and additionally can deliver benefits in blendstocks.