Preferably a Synthetic oil in a 10w30 or 0w30 weight. If you cannot afford the 9 dollars per season, you can use conventional dinosaur oil in a 10w30 weight.
SAE 10w30 full synthetic.
depends on climate, for colder used 10-20 or 10-30, for warmer use 10-40
It can depend on the make and model of the transaxle. But, typically they use a 20W50 motol oil in the transaxle.
10w-30w is fine
sae 30
Any 2-stroke mower type will serve.
Hd 30w
30W for summer
10w30 oil is what is recommended
catcher #c38
If you raise the hood of the mower up it should have it on the yellow detailed sticker of mower. Normally 10w30
The best riding mower for hilly terrain is would be any kind of walk behind mower as you control it's movements, speed, and direction. However, if you have a large yard and want a riding mower newer LG mowers a good bet. An older option would be a Gravely Garden Tractor.