Originally Posted By: Lubener
All Briggs cares about is the engine getting thru the warranty period which it should even with no oil changes. Younger homeowners probably never did an oil change in their life anyway and look at this no change feature as a technical advancement.
Bingo. It's all marketing. Advertising a mower that never needs maintenance. The reality is you can still change the oil like others mentioned, just drain it through the hole you poured it into.
Also think about how many of the average Joe Homeowner actually change the oil in their mower anyway... they use it for a few years, maybe check it when there is nothing left, add some more, and then buy a new one when the engine seizes or smokes too bad.
My dad bought a brand new Murray lawnmower in 1988. He never changed the oil, just added some when it got low. That mower lasted 20 years until it was sold (still running fine) for a self propelled one.