Oils, greases, lubricants and fuels, including motor fuel, in particular diisobutenes a butane gas being fuel, ethyl tert-butyl ether (ETBE) abutane gases being fuel, liquid gases being gases for use as fuel, liquid gas mixtures for use as fuel, fuels or non-chemical additives to fuels, in particular oxo oils obtained from the production of INA, oxo oils obtained from the production of ITDA, oxo oils obtained from the production of 2-PH, raw butane being butane gases being fuel, tetrabutane b...