Solvent extraction is one of the cheapest and more efficient processes for waste oil recycling. In this work the action of some solvents (2-propanol, 2-butanol, 2-pentanol, methyl ethyl ketone, and methyl n-propyl ketone) on both yield and quality of the recovered oil has been investigated. The quality has been assessed through the measurement of metallic, polymeric, and oxidation compound concentrations in the extracted oil. Experimental results have shown that extraction yields increase with increasing solvent/oil ratios up to a point at which they stabilize. When comparing alcohols and ketones it has been found that yields obtained with solvents of equal numbers of carbon atoms are similar and increase with increasing solvent molecular weight for both families. On the other hand, metallic and oxidation compound removal was similar for alcohols and ketones of equal numbers of carbon atoms, but alcohols were more efficient than ketones when polymeric additive elimination was considered. All these results may be attributed to the combined effect of factors such as the system viscosity, the detergent-dispersant additive concentration, and the difference between the solubility parameters of the system components.