Which statement is true based on the material?

• A. Saws require no fuel.
• B. Octane has no effect.
• C. Crews and Equipment recommends a minimum of 91 octane.
• D. The minimum octane is 89.

Answer: (C)

Octane rating affects how a gasoline-fueled engine tolerates compression and avoids knocking. The material specifies a minimum of 91 octane, so this statement aligns with the documented fuel requirement. Using the recommended octane helps ensure proper combustion, keeps engine performance steady, and protects against detonation in the field. The other ideas conflict with the fuel guidance: a saw does require fuel, octane does influence performance, and the minimum is not 89.