My new mower has the Kawasaki 24 HP V-twin it is know for good power a sipping gas compared to other options.
I can mow in less than ½ the time using ½ the gas I was using with my MTD lawn mower.
The seat springs rub on the steel under the seat makes noise and takes off the paint. I added furniture sliders to the top of the springs.
Nice and quiet and no paint rubbing off. The seat bolts are known for coming loose I added blue Loctite to those bolts.
The first oil change is at 5 hours then next one is 100 hours. I am close to the first one.