
Methods to identify genuine engine oil are as follows: 1. Check the oil cap: High-quality engine oil caps usually have neat and smooth edges, with a one-time sealing cap. If the cap appears rough, lacks a "pull-tab" seal, or can be directly unscrewed, it is likely repackaged oil. 2. Look for the anti-counterfeit code on the container: Genuine oil containers have clear anti-counterfeit codes. Fake oil may lack such codes or have blurry ones that can be easily rubbed off. Many legitimate oil manufacturers provide various anti-counterfeit verification methods, such as anti-counterfeit labels, QR codes, product serial numbers, special markings, official websites, customer service hotlines, SMS verification, etc. Diligent verification can help avoid purchasing fake oil. 3. Examine the container material and craftsmanship: Genuine products have intact materials and clear printing, while counterfeit ones often have rough edges and uneven surfaces.

When I first started learning to drive, I was always worried about buying fake engine oil. Now, with experience, I know the key is to check the packaging. Genuine products have exquisite printing, bright colors, and no spelling errors or blurry areas. The labels contain complete information, including production dates, manufacturer addresses, and other details. Always verify the anti-counterfeit code—scan it with your phone, and it should show verification on the brand's official website to be genuine. Also, inspect the bottle seal. Authentic oil usually has an intact plastic film, while fake ones might have loose seals or glue marks. After opening, smell it—real oil has a clean, oily scent without any harsh chemical odor. Shake the bottle—genuine oil has few bubbles that dissipate quickly. By following these checks, I’ve avoided many pitfalls and extended my engine’s lifespan by at least two years. Remember, don’t skimp on small expenses—cheap products often come with big problems.

After working in the workshop for so many years, I teach beginners how to identify authenticity through sensory tests: After opening the bottle, first check the oil color—genuine oil is clear and bright, not dark or containing suspended particles. Pour a little on your hand and rub it; genuine oil has moderate viscosity, is smooth and lubricating without roughness. It should smell like pure engine oil without sour or sweet odors. After shaking, observe the fluidity: genuine oil pours smoothly without clots, while fake oil may be thin like water or have clumps. Texture is also important—genuine oil is moisturizing and not sticky, while fake oil may feel dry or cause irritation. Simple tools like a viscometer can help verify if the viscosity meets standards. If engine noise increases or fuel consumption rises after an oil change, check for authenticity immediately to avoid premature major repairs.

When I first bought a car, I often got tricked. After learning the hard way, I summarized a three-step identification method: First, choose official channels like 4S stores or chain supermarkets, and don’t be tempted by unrealistically low prices online. After getting the oil, check if the outer packaging is intact, with no damage to labels or details; genuine products have tightly sealed caps to prevent leaks. Open the cap and smell—it should be fresh without any odd odors; pour a small amount on paper, and genuine oil will spread evenly with clear edges. Take the car for a test drive—real oil makes the engine quieter and more powerful, while fake oil may cause shaking or sluggish acceleration. These basic checks take just minutes but significantly reduce risks and protect your beloved car.


