What type of gasoline should I use and how much does the fuel tank hold?

Use fresh, clean, regular unleaded gasoline with a minimum of 87 octane, and the fuel tank holds 4 gallons. Do not mix oil with gasoline, and fill only to the bottom of the tank filler neck — do not overfill. Purchase fuel in quantities that can be used within 30 days to ensure fuel freshness. (Page 6, Page 13)