As the title states. I'm done changing oil in my 2 year old Toro Recycler. It has become very obvious the Tecumseh flat head is going to outlast the mower by far. The mower is aging very fast and I just don't see the point in ever changing the oil at this point. It currently has a fill of Mobil1 15w50 from the end of last season and from here on out it will see top ups only. Moral of the story... unless your buying a professional grade mower the engine doesn't matter.