To date, MXene dispersions have been mostly limited to polar solvents. Here, we show that when the lithium cations present between MXene multilayers after etching are exchanged with di(hydrogenated tallow)benzyl methyl ammonium chloride (DHT), they become organophilic and form highly stable colloidal suspensions in nonpolar solvents. The rapid cation exchange occurs under ambient conditions and the resulting two-dimensional flakes are weli dispersed and remain oxide free. A 142 +/- 0.7-mu m thick film (approximate to 10 mg . cm(-2)) made from a DHT-Ti3C2Tz suspension in toluene exhibits pseudocapacitive behavior, with a apacitance of 305 F . g(-1) at a scan rate 2 mV . s(-1). The moduli and tensile strengths of solution-processed polyethylene nanocomposites are increased by approximate to 11% and 32% with a loading of approximate to 1 vol% DHT-Ti3C2Tz. Our approach may enable the use of MXenes in multiple research and industrial fields.