what is covered in the 3yr. protection plan that may not be included in the 2yr. limited warranty with Generac pressure washer?

I guess the real question is: "Is it worth 60 bucks for an extra year on the warranty?" If, to you, it is then get it. Realistically though, if something fails due to a manufacturing defect, it will be in the first year or two - after that it just wears out. Extended warrantees are HUGE money makers for those who sell them and seldom of benefit to those who buy them.