I have several Harbor Freight Hydraulic jacks. Will they last for years and years with constant daily use? Probably not. But, for a DIY'r who will use it a few times a year and the jack is properly taken care of and not overloaded or abused, it should last 20 or 30 years, maybe more. On hydraulics, it is the seals that almost always blow out or dry rot. Most of that is because the seals sit for extended time, without being exercised.Any body buy a daytona jack and how do you like it .Iam looking at a 3 ton.