I just got an Ariens 92001 from a friend, hoping to get get her fired up before the next 12" projected for MA this weekend. First thing I want to do is change the oil. Since there is no dipstick how do I know how much oil to add? Do I just fill to the bottom threads of the fill hole. I want clean out the carb and make it all nice but with the new storms coming I am hoping to not have to shovel again so if it starts and runs I will clean her up after this season. Thanks in advance for any info you guys can supply me. This is a great site.