250 hr is till it will pollute due to worn rings you may get 100-250
more hours than that you may not. There are higher hour rated motors by
B&S 500-1000 for example but it a true indicator of a motors
construction and durability .Using the EPA rating is a good way for you
to compare a motors life expectency. B&S and others even honda have a
light duty and commercial service line. Honda used to be only Commercial
duty but now has the cheap line to.