Oil to use in Robin motor
I am getting a used Snapper that I recently purchased and the seller needed to drain oil to ship. I would like to use synthetic Mobil1 10W30. Some people think that may cause it to leak oil. Any thoughts on which oil should be used. I am near Nashville right now and temps will soon be mid 80's to mid 90's maybe an occasional 100+ day but I just won't mow on those extremely hot days. I mow about 1/2 acre. Thanks for your help.