NOVELTY - Composition comprises 2,3,3,3-tetrafluoropropene (HFC-1234yf), and at least one compound comprising propane, n-butane, isobutane and/or dimethylether (DME).    USE - (I) is useful for: improving oil-return to the compressor in a compression refrigeration, air-conditioning or heat pump apparatus; replacing a high GWP refrigerant in a refrigeration, air-conditioning, or heat pump apparatus; forming a foam; and producing aerosol products. (I) is useful as a heat transfer fluid composition. (I) is useful in a refrigeration, air-conditioning, or heat pump apparatus, which is a mobile apparatus, automobile air-conditioning apparatus, refrigerated road transport equipment, a stationary air-conditioning system, a stationary pump system, or a stationary refrigeration system. (I) is useful in a processes for producing cooling or heating effect, and as heat transfer fluids, foam blowing agents, aerosol propellants (all claimed).    ADVANTAGE - The composition has zero or low ozone depletion potential and low global warming potential.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for:    (1) a method of producing cooling/heat comprising: evaporating/condensing the composition in the vicinity of a body to be cooled/heated and condensing/evaporating the composition;    (2) a method for detecting the composition in a compression refrigeration, air conditioning or heat pump apparatus comprising providing the composition including UV fluorescent dye to the apparatus, and providing a suitable means for detecting the composition at a leak point or in the vicinity of the apparatus;    (3) a method of solubilizing a refrigerant or heat transfer fluid composition including the composition in a refrigeration lubricant comprising contacting the lubricant with the composition in the presence of a compatibilizer, where the refrigeration lubricant comprises mineral oils, alkylbenzenes, synthetic paraffins, synthetic naphthenes or poly(alpha)olefins;    (4) a method for replacing a high global warming potential (GWP) refrigerant, in a refrigeration, air-conditioning, or heat pump apparatus, comprising providing the composition to the refrigeration, air-conditioning, or heat pump apparatus that uses, used or is designed to use the high GWP refrigerant, which is 1,1,1,2-tetra fluoroethane, chlorodifluoromethane, dichlorotrifluoroethane, trichlorofluoromethane, 1,1,1,3,3-pentafluoropropane, dichlorotetrafluoroethane, hexafluoropropane, 2-chloro-1,1,1,2-tetrafluoroethane, dichlorodifluoromethane, R410A, ternary blend of hydrofluorocarbon, R417A, R422A, R507A, R502 or R404A;    (5) a method of using the composition as a heat transfer fluid composition comprising transporting the composition from a heat source to a heat sink;    (6) a method for making the composition comprising: (i) reclaiming a volume of one or more components of a refrigerant composition from at least one refrigerant container, (ii) removing impurities sufficiently to enable reuse of the one or more of the reclaimed components, (iii) and optionally, combining all or part of the reclaimed volume of components with at least one additional refrigerant composition or component;    (7) a refrigeration, air-conditioning, or heat pump apparatus containing the composition;    (8) a method of forming a foam comprising: adding the composition to a foamable composition; and reacting the foamable composition under conditions effective to form a foam; and    (9) a process for producing aerosol products comprising the step of adding the composition to active ingredients in an aerosol container, where the composition functions as a propellant.