The oil recommendations will be in your Mowers Users Guide, Be sure to get your Mowers Parts & Repair Manuals as well, (if you are going to maintain the machine yourself AFTER warranty expiration) , be sure not to do ANYTHING to void the warranty, READ the owners guide, !! keep all receipts and paperwork from the machine with the manuals, all in one place, lastly ... IF, & when you do anything to the machine, TAKE LOTS of PICS .. LOTS of them, they WILL prove handy, especially pics of linkages, and ESPECIALLY springs ( points of attachment ( from where to where ) Best of luck and much happiness with your new "toy" .. :thumbsup: