Q:

What is the fuel mix for a McCulloch Pro Mac 610 chainsaw?

A:

Quick Answer

The gasoline to oil mixture for McCulloch chainsaws is 50 to one. McCulloch recommends "Universal powered by McCulloch two-stroke oil" for all of its products with two-cycle engines.

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Full Answer

Two-cycle engines require a mixture of oil and gasoline, which creates more emissions since oil is burned with the gas. Two-cycle oil is designed to reduce engine deposits. Two-cycle engines, also known as two-stroke engines, complete a power cycle in one crankcase revolution and have a narrower power band than four-cycle engines, which complete a power cycle in two crankcase revolutions. Two-cycle engines are found in string trimmers, outboard boat motors and motorcycles.

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