Most people only ever use the cheapest gas possible for their lawn equipment.  Something to consider this year is the life of your mower.  Did you know something as simple as using the high octane or ethanol free fuel will help your mower to not only run better but last longer. Look at it as a cheap insurance policy to make sure your equipment lasts longer or need fewer repairs.  Fewer repairs and longer life means money saved!  Also, when it comes to your 2 cycle fuel, use a product like TruFuel50 that has cleaners, stabilizers and ethanol free fuel. You wont regret your decision!