Originally Posted By: IndyFan
I have to ask how hard these things really are on oil? I have a 23hp Kholer V-Twin on a John Deere L130. I bought it new as a 2004 model, so its at least 11 years old. I've run Mobil 1 10w30 the entire time, with John Deere filters. I used to change the oil every year, but I noticed the oil was coming out looking brand new. I then moved to every other year, and guess what? Same thing. I'm on year 3 now, so I'll change it again, but on the dip stick, the oil still looks new. I'm really thinking about the 5 year plan. I think this thing could probably go a decade, easily, on this oil, especially if I check it and make sure it stays full. (I've never had to add oil). One thing I do change every year, though, is the air filter. It gets pretty nasty after a season.
Yep, my Deere self propelled with a briggs looks clean every year. I run Delo or whatever Diesel oil I can find. I only change it out of habit once a year. I think changing the air filter is more important than the oil. I can spend 10 minutes once a year and 3 bucks for a quart of oil.
Late in the season down here in Texas the dust flies all over the place, and the air filter gets trashed. I replace it 3x per year.