Second change to buy auto parts god：
The filter element is divided into dry type and wet type, which are mainly used to remove impurities in the air required by the engine. The dry performance is made of paper or organic materials, while the wet filter is made of mesh wire.
Both are capable of filtering large and heavy impurities in the air and purifying the air with the synergy of the air guide vanes. The quality of the filter outer packaging on the outer packaging standard font is clear, the surface paint texture is smooth, the sealing effect is good, can protect the engine well, thus reducing the occurrence of engine inactivity due to dust accumulation. The inferior filter element is poorly made, the package font is ambiguous, the filtering effect is poor, the service life is short, and it is easy to be damaged.
Counterfeit spark plugs have poor electrode gaps and poor insulation properties, resulting in poor thermal conductivity and relatively low anti-conductivity. After use, they are likely to cause insufficient combustion, resulting in reduced engine power, increased fuel consumption, and overheating of the engine. It brings certain safety hazards in the car driving. How to tell the authenticity of the spark plug? Just look at the screw plug's thread for smoothness and don't tie it. You can also shake the terminal screw cap by hand, if it is firm and not loose, it is a genuine quality spark plug.
In addition, the brand name and model of the surface of the ceramic insulator coated with genuine spark plugs are clearly visible, and if the hand is easily smashed, it is a replica.
Brake pads are extremely difficult to distinguish between authenticity and other automotive parts, but consumers can still see a bit of eyebrows from the outer packaging and products. The genuine packaging is excellent and complete, the screws, clips and wear sensors attached to the package are well-made, the surface has no obvious scratches and bumps, and the braking effect is good. The brake performance of inferior brake pads is generally poor, there is obvious sharp friction sound when braking, and the vehicle can not be stopped due to severe heat.
Here to remind consumers that if you encounter the above situation, please go to the regular 4s shop and brand repair shop to check and replace the brake pads to avoid accidents.