How to Know What Grade of Fuel to Use for Your Car?
2 Answers
Check the vehicle's user manual, which records the recommended fuel grade for your car. Below is relevant information about engine oil: 1. Introduction: Engine oil, also known as engine lubricant, with a density of approximately 0.91×10³ (kg/m³), serves multiple functions such as lubrication and wear reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, and shock absorption. It is often referred to as the 'blood' of a car. Engine oil consists of base oil and additives. The base oil is the primary component of lubricating oil, determining its fundamental properties, while additives compensate for and improve the shortcomings of the base oil, providing certain new characteristics, making them an essential part of lubricating oil. 2. Classification: Engine oils in the market can be broadly categorized into mineral oil and synthetic oil (vegetable oil is not considered due to its scarcity). Synthetic oils are further divided into full synthetic and semi-synthetic.
When I first started driving, I was also confused about which type of fuel to use and worried that using the wrong one might damage the engine. Later, I asked an experienced driver friend, and he taught me the simplest method: open the fuel filler cap and check if there's a small label on the inside. It usually indicates the recommended fuel grade, such as 92, 95, or 98. Also, the first chapter of the owner's manual definitely has detailed instructions, and I always review it before each maintenance. Different car models have different requirements. For example, my small car runs fine on 92 octane, but my friend's high-performance car needs 95 or 98 octane to prevent knocking. If you're unsure, you can default to 95 octane to avoid engine knocking or a sudden spike in fuel consumption caused by using a lower grade. Now, I've developed the habit of glancing at the cap before refueling—it's worry-free, safe, and saves unnecessary repair costs. In short, don’t be afraid of the hassle; checking before refueling is much better than regretting it later.
