Aviation gasolines containing mesitylene and isopentane

Abstract

Describe are preferred formulations for Avgas meeting the requirements for use in aircraft, including requirements established under ASTM standards and by the Federal Aviation Administration. In one embodiment, a binary mixture of 1,3,5-trimethyl benzene (mesitylene) and isopentane is used to provide a MON of at least 100, and more preferably at least 102. In other embodiments, the amounts of mesitylene and/or isopentane may be changed, and other fuel components are included. These various Avgas formulations are thereby adjusted to meet a variety of requirements as to octane rating, RVP, cold start, and other fuel characteristics.

What is claimed is: 
     
         1 . A motor fuel comprising 56-88 wt % mesitylene, 10-20 wt % isopentane, 0-15 wt % isooctane, 0-2 wt % butane, 0-5 wt % alkylate, 0-24 wt % toluene, and 0-30 wt % xylene, the fuel further characterized by having a MON of at least 100 and an RVP of 38-49 kPa at 38° C.