What is the symbol for gasoline engine oil?
2 Answers
The oil filler cap symbol is located on a cap with an oil can symbol near the engine. Additional information: 1. A car without oil generally exhibits the following symptoms: (1) The warning light will illuminate. (2) Valve noise. (3) Knocking sounds. 2. Functions of engine oil: (1) Lubrication. (2) Cleaning. (3) Rust prevention. (5) Cooling, among others. 3. Composition of engine oil: (1) Consists of hydrocarbons, poly-alpha-olefins (PAO), and polyinternal olefins (PIO), all of which are organic compounds composed solely of carbon and hydrogen. (2) Some high-grade engine oils may contain up to 20% esters.
When I drive my sedan to the gas station to refuel, I always glance at the numerical labels near the pump nozzle first. Numbers like 92, 95, and 98 are the octane rating indicators, prominently displayed at almost every fueling point. These numbers represent the octane level—using the correct one can save fuel and protect the engine. Besides the numbers, there are sometimes color codes too; green might indicate a lower octane, while blue could mean a higher one, but since color schemes vary by region, it's best to rely on the numbers. I remember once during a trip out of town, I almost used the wrong octane, but thankfully, the clear labeling helped me avoid trouble. If you accidentally use a lower octane fuel, the car may frequently experience knocking and shaking, driving up repair costs. That's why I've made it a habit to always check the recommended value on my car’s fuel cap before refueling. Gas prices fluctuate a lot these days, but don’t underestimate this small label—it can extend your car’s lifespan and save you a lot of money.
