I have a 3w 100 ? and wondering if it should be 98 octane or not . 8 /


I looked on 3w sight couldn't find a manual , and i really didnt know that they call for higher octane actuly I got told club mebmers at my field it would make it run lean and hot
I also don't know what model number the motor is I guess I can take the cowl off and find some markings in there

so my question is do all 3W's run 98 octane ? and 32 to 1 pens oil " yellow bottel lawnmower store brand