It says no change but there's nothing stopping you. I change my OPE once a year with my MityVac.
Meanwhile this last spring I helped my dad change the oil in his Craftsman riding mower for the first time since, in his words, "you were in high school." Both examples are extremes.
I would just tip it on its side to change it anyway. I've always used drain plugs but my new honda gcv200 is a tip style oil change and honestly after doing it twice I prefer it over anything else. Before I used to hunt for something to prop the mower up on, get a wrench, take the drain plug out blah blah etc.. Tipping the honda is a breeze and the whole process to full and done takes about three minutes. No tools or anything.
Any thoughts on how well the no change just add oil lawn mowers will standup?
a lot longer than you may realize. Most mowers are junked due to issues OTHER than the motor. And most are not changed. I picked my mower up free, drive cable broke. Changed the oil multiple times....still comes out dark. Doubt it had ever been changed yet runs perfect.
Oh they'll probably be fine. Most lawn mowers see less than 50 hours per year and we all know they can tolerate some wicked abuse and neglect. How many of us grew up with generic hardware store brand mowers that lasted 20+ years? I change the oil in my stuff every 2 years or so. Maybe. I check the level in the spring and have never had to add any (Honda GCV engine) and it has synthetic in it so I'm not too concerned. The B&S engines of today are light years ahead of the flatheads of yesteryear. My previous mower had a Briggs flatty on it that ran really good for about 16 years and had maybe 2-3 oil changes in that time. The governor failed on it, oversped, and blew. Had nothing to do with the oil in it.
Not long enough to get me to buy one.
Sticking with my Toro Commercial 2 Cycle Suzukis.
1 vintage 1999, 1 vintage 2000, 1 vintage 2003.
Best lawnmowers ever manufactured, hands down!!! No other mower ever produced was/is as nearly indestructible as this one. I sold tons of these expensive heavy duty (and heavy) mowers to my commercial customers, and some of them are still in daily use today.