How to identify the advantages and disadvantages of oil filter:
Function of oil filter: There are two main impurities in engine oil - one is the metal particles worn by engine parts during operation or the dust, dust and sand entering the engine from the oil filler when replenishing the oil. The other is organic matter, in the form of black clay. This is the substance produced by the chemical change of the engine oil at high temperature during the engine operation. The oil filter is an auto part that filters out impurities in the oil and keeps the oil clean.

There are great differences between genuine oil filter and counterfeit oil filter in outer packaging and filter body structure.

The genuine filter has a hard plastic bracket at both ends of the filter paper. Each fold of the filter paper is fixed on the bracket, so it is not easy to deform during use; The plastic supports at both ends of the filter paper also play a sealing role, forcing the oil to be filtered through the filter paper. The counterfeit filter paper is fixed by plastic rings at both ends of the filter, but no sealing measures are taken at both ends of the filter paper. The oil does not flow through the filter paper, but directly through the wrinkled gap of the filter paper, without any filtering.

The difference in material: the filter paper material of the genuine filter feels smoother, and the filter paper fiber is more delicate. The counterfeit filter paper feels rather rough and the paper fiber is thick. The finer filter paper paper fiber can better filter the impurities in the engine oil, making the filter performance better.

The difference on the outer packaging: the counterfeit oil filter does not have any anti-counterfeit identification and production certificate. The label on the outer package is completely copied from the original label of Toyota, with the part number and applicable engine model printed on it. The information is complete, but the printing process is poor.

The outer packaging of the genuine oil filter has a good printing process, and the pictures and fonts are very clear. The manufacturer's address, contact information and origin are listed in detail through the label on the side. The production certificate is located in the package, with the production date and the seal of the quality inspector on it.