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Definition of Terms
Most people are familiar with the terms "premium gas" and "regular unleaded gas." Car owners see these terms at the pump every time they fill up their vehicle. While these are words consumers encounter on a daily basis, it does not mean people truly understand what they mean. Following is a definition of these two types of gasoline.
Regular Unleaded Gas
Regular Unleaded Gas (RUG) is the most common type of gasoline used for most vehicles around the world. A byproduct of crude oil, RUG is a highly flammable material. It also does not have any lead compounds, making it more environmentally-friendly and less hazardous to the health than gasoline with lead. Lead has been known to stunt the development of children and cause cancer. RUG's octane rating, which refers to its ability to withstand improper fuel combustion in the engine, is 87.
Premium Gas
Premium gasoline shares many characteristics with regular unleaded gas. It is also produced from crude oil and is a combustible substance. The octane rating of a premium gas varies, but it is typically 90 or higher. This is why premium gas is also known as "high octane gas." Not only does it keep engines cleaner due to its detergent additives, it also produces less pollution.
Premium Gas Vs. Regular Unleaded Gas
While they are both made from the same raw material, premium and regular unleaded gasoline differ in several ways. Being aware of these differences and their effects on car performance is the first step to making a well-informed choice when buying fuel.