Knowing what kind of oil the leaf blower use is very important for the maintenance of the blower. This is normally in the owners manual. If you could add your model number to your blower your expert will be able to help give you a detailed answer. It may take 24-48 hours. I hope this helps. In the mean time I found some information for you. I added a link below for you.
Thank you for submitting your question. Without the model number I'm unable to provide model specific information. Please reply back to this thread with the complete model number for further assistance.