(1) **Identifying Fake Gasoline**
One way to identify fake gasoline is by checking its color. Genuine gasoline usually has a light yellow, reddish, or orange hue. Another method is observing the bubbles after shaking the container. If the bubbles form and quickly disappear, it's likely real. Smelling the fuel is also important—real gasoline has a strong, distinct petrol odor. When you touch it, it should feel slightly astringent and cool on your skin. Also, check its volatility; authentic gasoline evaporates quickly. If none of these characteristics are present, it’s probably counterfeit.
(2) **Identifying Fake Kerosene**
Real kerosene is typically white or light yellow and clear. After shaking, the bubbles should dissipate rapidly, and it should have a strong kerosene smell. When touched, it feels slightly smooth. It doesn’t evaporate as quickly as gasoline. If any of these signs are missing or unclear, the product may be fake or low quality.
(3) **Identifying Fake Light and Heavy Diesel**
Genuine light diesel oil is usually tea-yellow with a blue sheen and has a strong diesel smell. When shaken, it produces small bubbles that vanish quickly. It feels smooth when touched and leaves an oily residue on your hands. Heavy diesel, on the other hand, is more tan in color, has a slightly milder diesel scent, and is less volatile. It also forms small bubbles that disappear quickly. If the fuel does not match these features, it could be fake.
(4) **Identifying Fake No. 0 and No. 20 Diesel**
No. 0 diesel is yellow with a flash point of at least 60°C, while low-quality diesel is often black with a lower flash point (around 43°C) and higher carbon residue. To distinguish between the two:
1. **Cooling Test**: Place a small amount of diesel in a glass tube and submerge it in ice water. If it solidifies immediately, it’s not No. 0 diesel. If it remains liquid, it is genuine No. 0. If no ice is available, use cold water instead.
2. **Combustion Test**: Compare the smoke from both types. No. 20 diesel produces more black smoke than No. 0.
3. **Oil Observation**: No. 0 diesel has less wax, a lighter color, and a lower density. No. 20 diesel contains more wax, is darker, and has a higher density.
4. **Density Test**: Mix both fuels in a transparent container. No. 20 diesel will sink, while No. 0 will float. If the results differ, the fuel may be counterfeit.
(5) **Identifying Fake Engine Oils**
Engine oils for gasoline and diesel engines have specific traits. The color is usually dark brown to blue-yellow, and they have an acidic smell. When shaken, the bubbles are small and take time to disappear. After hanging the bottle, the oil should appear yellow. When applied to water, it may emulsify slightly but should remain sticky and able to stretch into short filaments. If these features aren’t present, the product is likely fake.
(6) **Identifying Fake Road Engine Oil**
Luluda engine oil is widely used and easy to identify. Genuine Luluda comes in an alloy steel box with a large "Rotella DX" logo. The label reads "Lulu Da 40," and the trademark features a scalloped pattern with the word "Shell" underneath. It also includes a 3D anti-counterfeit label with a rounded rectangle design, featuring the word "Shell" and "lubricated." Counterfeit products lack these labels, making them easily identifiable.
(7) **Identifying Fake Gear Oil**
Check the color first—genuine gear oil is black or dark green. It should have a burning smell. When poured, it should stick to the bottle for a long time and not drip off easily. Shaking it should produce few bubbles. After touching it, it should feel thick and leave a residue. If it lacks these qualities, it may be fake.
(8) **Identifying Fake Calcium-Based Grease**
Genuine calcium-based grease is yellow-brown in color, with a uniform texture and a smooth, ointment-like consistency. Perform a water test: real grease won’t emulsify or change much in water. When touched, it should feel smooth without drawing or sticking excessively. If it fails any of these tests, it’s likely fake.
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