I have tried to find Pennzoil 2 stroke oil for air cooled engines locally (Salem, OR) and have not been able to find any. Maybe I will have to order some, but I am wondering of any of you have used these oils with satisfaction: Master Mechanic, Briggs and Stratton, and Arnold. My local True Value has those three on the shelf. I need to get my oil and gas can so I can start up the DL-50 in my RichModels Extra 330L for the first time soon! Thanks. Jon