The 2014 Chevy Spark is designed to run optimally on SAE 5W-20 or 0W-20 engine oil, with the latter being preferable for improved fuel economy and better performance in colder environments. It's important to use oil that meets the dexos1 specification, as recommended by General Motors, to ensure proper lubrication and protection of the engine's moving parts. This is particularly crucial for vehicles under warranty to maintain compliance with GM's requirements. Regular oil changes, as outlined in the vehicle's maintenance schedule, are essential for the longevity and efficiency of the engine. Using high-quality, manufacturer-recommended oil not only preserves the engine's life but also maximizes performance and fuel efficiency.

In science, an emulsion is a mixture of two or more liquids that are normally immiscible (unmixable or unblendable). Emulsions are formed by dispersing tiny droplets of one liquid (the dispersed phase) through another (the continuous phase). Common examples include mayonnaise, milk, and vinaigrettes. Emulsifying agents, such as egg yolk in mayonnaise, are often used to stabilize emulsions, preventing the liquids from separating. Emulsions play a critical role in various industries including food, cosmetics, and pharmaceuticals, leveraging the unique properties of immiscible fluids mixed at the microscopic level for enhanced texture, consistency, and product delivery systems.

A polymer of monosaccharides, also known as a polysaccharide, is a complex carbohydrate formed by the linkage of many simple sugars (monosaccharides) through dehydration synthesis. Monosaccharides, such as glucose, fructose, and galactose, are the fundamental building blocks of these polymers. When these units join together, they create larger molecules that can serve various functions in living organisms. Three primary types of polysaccharides include glycogen, starch, and cellulose. Glycogen, stored in animal cells, acts as an energy reserve; starch serves a similar function in plants; and cellulose, also found in plants, provides structural support. Polysaccharides play crucial roles in nutrition, energy storage, and structural integrity, making them essential components of both plant and animal life.