To determine the proper fuel-to-oil ratio for your chainsaw, you should reference:

To determine the proper fuel-to-oil ratio for your chainsaw, you should reference:

• A. The chainsaw’s operator manual or the label on the fuel container, following the manufacturer’s specified ratio.
• B. A home-made mixture ratio you heard from a coworker.
• C. The color of the fuel.
• D. The size of the fuel can.

Answer: (A)

Always use the exact fuel-to-oil ratio specified by the manufacturer because chainsaws rely on proper lubrication to keep a two-stroke engine running smoothly. That ratio is chosen to ensure there’s enough oil to coat moving parts without causing excessive smoke or deposits. The official ratio is printed in the operator’s manual and on the fuel container label, reflecting testing and engineering for your specific model. A coworker’s homemade ratio can be incorrect for your saw or conditions, and the fuel’s color or the size of the can do not indicate the proper mixture.

Always use the exact fuel-to-oil ratio specified by the manufacturer because chainsaws rely on proper lubrication to keep a two-stroke engine running smoothly. That ratio is chosen to ensure there’s enough oil to coat moving parts without causing excessive smoke or deposits. The official ratio is printed in the operator’s manual and on the fuel container label, reflecting testing and engineering for your specific model. A coworker’s homemade ratio can be incorrect for your saw or conditions, and the fuel’s color or the size of the can do not indicate the proper mixture.