The user's needs will dictate which gas leaf blower motor type is better. Although a 2-stroke engine can be powerful and last a long time, it's also very noisy due to its oil/gasoline combination. While four-stroke engines can be more efficient than two-stroke ones, this does come at the expense of power. These engines have a lot of appeal to users. They mix oil and fuel within the engine so that the gasoline and oil can be mixed as required.