First Oil Change

[den052]

I just got the Scag Liberty with the Kohler 22hp engine and now have 9 hours on it. I need to change oil and filter, can I use syn oil? Can I use Mobile 1 oil in it? Should I use 10w 40 oil?
Thanks for any suggestions on this, such a great mower.

Absolutely. Synthetic oils resist thinning out with air-cooled engines, and don't thicken up when cold as much. The wear resistance is superior with them. I went to a diesel oil seminar and the expert talked about the advantages of synthetic oils

I talk with authority here.

I'm a retired MASTER light and heavy truck mechanic for over 50 years