TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The fluorinated compound includes a fluorinated portion soluble in fluorinated oil. It is preferably a 4-10C alkane or an ether of formula R1-O-R2, where R1 and R2 = 1-4C alkyl. The fluorinated aromatic (preferably benzene) compound and the ketone (preferably R1-CO-R2, where R1 and R2 = 1-10C alkyl) are insoluble in the oil. The whole composition is soluble in the oil. It contains 25-60 wt.% (a), 5-50 (preferably 5-30) wt.% (b) and at least 2 wt.% (c). The composition may also contain an aerosol propellant (such as carbon dioxide, isobutane, dimethyl ether and/or 1,1,1,2-tetrafluoroethane), an anti-wear or extreme pressure additive, a friction or lubricity modifier, a corrosion or oxidation inhibitor, a thermal stabilizer and/or a viscosity modifier. The composition may be a solution, dispersion or emulsion and it may additionally contain a fluorinated oil.Preferred Fluorinated Oil: The fluorinated oil is a perfluoropolyether of formula (i)-(v) or a halocarbon containing the repeating group -(CF2CFCl)r-.CF3CF2CF2O-(CF(CF3)CF2-O-)nCF2CF3 (i)CF3O-(CF(CF3)CF2-O-)y-(CF2-O)mCF3 (ii)CF3O-(CF2CF2-O-)z-(CF2-O-)pCF3 (iii)CF3CF2CF2-O-(CF2CF2CF2-O-)qCF2CF3 (iv)F(CF(CF3)CF2O)n'CF2CF3 (v)m, n, p, q, y, z = 0-60;n' = 10-60; andr = 2-10.    TECHNOLOGY FOCUS - MECHANICAL ENGINEERING - Preferred Article: The container includes a flexible bladder (preferably permeable) for containing the composition and means for dispensing it. SPECIFIC COMPOUNDS - The fluorinated compound is methyl perfluorobutyl ether. The fluorinated aromatic compound is benzotrifluoride, p-chlorobenzotrifluoride, dichlorobenzotrifluoride or trifluorotoluene. The ketone is acetone, methyl ethyl ketone or methyl butyl ketone.    EXAMPLE - Methoxynonafluorobutane (50 wt.%), para-chlorobenzotrifluoride (35 wt.%) and dimethyl ketone (15 wt.%) were mixed to form a single-phase, stable composition. The composition was exceptionally effective in dissolving perfluoroalkylpolyethers such as KRYTOX (RTM). It could also be used as an effective solvent delivery vehicle.