Qualities to look for in the best car waxes include lack of abrasiveness, lack of visible residue and a longevity of a few months, according to Consumer Reports. Consumers should look at packaging to make sure the wax provides clear-coat finishes.
High price does not necessarily determine quality, says Consumer Reports; some lower-priced waxes perform better than their higher-priced counterparts. Paste waxes tend to be easy to use, but liquids generally clean the best. Spray waxes are easiest and leave fewer stains, but their longevity is poor. In all cases, wax does not last more than a few months, and most varieties last no more than five weeks.