Stable microemulsion cleaning composition

A stable aqueous microemulsion cleaning composition in concentrated form, which, in the absence of opacifying component, is clear, and which is dilutable with water to at least five times its weight, which diluted composition is a stable aqueous microemulsion which is useful as an all-purpose cleaning composition, both the concentrated and diluted compositions being especially effective to clean oily and greasy soils from substrates, which concentrated composition comprises anionic synthetic organic detergent which is a non-soap sulfonated, sulfated or carboxylated hydrophobic moiety of 8 to 26 carbon atoms, nonionic synthetic organic detergent which is a condensation product of an organic aliphatic or alkylaromatic hydrophobic compound and ethylene oxide, or a mixture thereof, perfume of a water solubility less than 2%, water and co-surfactant, which is selected from the group consisting of water soluble alkanols of 2 to 4 carbon atoms, polypropylene glycol of 2 to 18 propoxy units, a monoalkyl ether of a lower glycol of the formula RO(X).sub.n H wherein R is C.sub.1-4 alkyl and X is CH.sub.2 CH.sub.2 O, CH(CH.sub.3)CH.sub.2 O or CH.sub.2 CH.sub.2 CH.sub.2 O, and n is from 1 to 4, a monoalkyl ester of the formula R.sup.1 O(X).sub.n H wherein R.sup.1 is C.sub.2-4 acyl and X and n are as immediately previously described, aryl substituted lower alkanol of 1 to 4 carbon atoms, propylene carbonate, aliphatic mono-, di-, or tri-carboxylic acid of 3 to 6 carbon atoms, mono-, di-, or tri-hydroxy substituted aliphatic mono-, di- or tricarboxylic acid of 3 to 6 carbon atoms, higher alkyl ether poly-lower alkoxy carboxylic acid of the formula R.sup.2 O(X).sub.n YCOOH, wherein R.sup.2 is C.sub.9-15 alkyl, n is from 4 to 12, and Y is CH.sub.2, C(O)R.sup.3 or C(O)phenyl, wherein R.sup.3 is a C.sub.1-3 alkylene, or a lower alkyl mono-, di-, or triester of phosphoric acid, wherein the lower alkyl is of 1 to 4 carbon atoms, or any mixture thereof, which diluted composition is of 1 to 13% synthetic organic detergent, 0.4 to 3% of perfume of water solubility of less than 2%, 83 to 98% of water and 0.4 to 10% of co-surfactant.