Gasoline 89 is typically an intermediate choice between lower-octane gasoline, such as 87-octane regular gasoline, and higher-octane premium gasoline, which often has an octane rating of 91 or higher. It is suitable for most conventional passenger vehicles and lower-performance engines, providing a good balance of performance and efficiency.
- Octane Rating: Gasoline 89 has an octane rating of approximately 89, which means it has good resistance to engine knocking, although not as high as higher-octane premium gasoline.
- Density: It has a typical density of around 750 kg/m³ at 15°C (59°F).
- Ethanol Content: In some places, gasoline 89 may contain a small amount of ethanol, typically up to 10% (E10), depending on local regulations. The ethanol content can vary by region.
- Sulfur Content: Gasoline 89 typically complies with low-sulfur content regulations to reduce pollutant emissions. The sulfur content can be 10 parts per million (ppm) or less in many regions.
- Stability: Gasoline 89 is expected to be stable and not break down over time when properly stored under normal conditions.
- Color: It is a transparent or slightly tinted liquid.
- Additives: It may contain specific additives such as detergents and antioxidant agents to keep engine components clean and prevent deposit formation.
- Energy Value: Gasoline 89 has an energy value that varies slightly depending on the exact composition but generally provides around 45-48 megajoules per liter (MJ/L) or approximately 120-125 octane units.
- Engine Compatibility: It is suitable for most conventional passenger car engines as it provides a balance between performance and efficiency. However, some high-performance engines or those with very high compression ratios may require higher-octane premium gasoline.
- Saturated Hydrocarbons: These include alkanes, which are linear or branched-chain hydrocarbons such as pentane, hexane, and heptane. These hydrocarbons provide energy when burned in the engine.
- Unsaturated Hydrocarbons: These can include alkenes and alkynes, which contain double or triple bonds between carbon atoms. Common examples are ethene and propene. Unsaturated hydrocarbons can help improve combustion efficiency.
- Aromatic Hydrocarbons: These include compounds such as benzene, toluene, and xylene (commonly known as BTX), which are cyclic compounds that can enhance the octane rating of gasoline and provide better combustion stability.
- Additives: In addition to the basic hydrocarbons, gasoline 89 may contain a variety of additives, such as detergents to keep fuel injectors and the intake system clean, antioxidant agents to prevent oxidation, and other chemical compounds that enhance engine performance and efficiency.
Conventional Passenger Cars: Gasoline 89 is suitable for most conventional passenger cars with internal combustion engines commonly found on the roads for daily transportation. Trucks and SUVs: Many medium to large trucks and sport utility vehicles (SUVs) can run smoothly on gasoline 89, especially those with lower-performance engines.
Motorcycles: Some smaller motorcycles with moderate compression ratios can use gasoline 89 for operation. Gardening and Recreational Equipment: Small equipment such as lawnmowers, chainsaws, and generators can use gasoline 89 as fuel.
Boats and Recreational Watercraft: In some regions, gasoline 89 is used in watercraft engines and recreational vehicles with lower-performance engines.
Commercial Fleet Vehicles: Some commercial fleets, like car rental companies, can use gasoline 89 in their lower-performance vehicles to reduce costs.
Classic Vehicles: Some older classic cars and trucks may require lower-octane gasoline, like gasoline 89, as their engines are not designed for the high-octane premium gasoline.