Final answer:
The best example of a vehicle that should use Mighty Engine motor oil is one with an internal combustion engine, such as cars, motorcycles, and boats, due to the need for oil that maintains lubrication over a wide temperature range.
Step-by-step explanation:
Example of a Vehicle for Mighty Engine Motor Oil
The reference to Mighty Engine motor oil suggests that we are discussing a product intended for use in engines where managing viscosity under varying temperatures is crucial. Considering the options provided, the best example of a vehicle that should use this type of motor oil is one with an internal combustion engine. This type of engine is found in most automobiles and requires oil that can maintain lubrication from cold starts to operating conditions at high temperatures.
An internal combustion engine, such as those in cars, motorcycles, and some boats, operates under a wide range of thermal conditions. The oil in these engines must be designed to provide effective lubrication whether the engine is starting on a cold winter morning or running at full capacity on a hot summer day in a desert. Mighty Engine motor oil would be formulated to retain its viscosity and protective properties throughout these extremes, illustrating the practical importance of controlling viscosity as mentioned in the given information.
While small electric tools, space shuttle engines, mammalian liver cells, and spinach leaf cells may all present interesting applications within their fields, they don't require motor oil. Instead, the internal combustion engine stands out as the correct option for the application of Mighty Engine motor oil.