PINGYUAN FILTER CO.,LTD , https://www.pingyuanfilters.com
According to common knowledge, a bottle of engine oil is typically expected to last around 5,000 kilometers. However, after just over 1,000 km, some drivers are already encountering serious issues: the oil becomes increasingly diluted, then thickens unexpectedly, and in some cases, sludge builds up significantly. This can eventually lead to engine damage. Xie Yilin, a distributor from a petrochemical company in Wuhan, has recently received multiple complaints from customers who purchased lubricants from her.
Xie said, "Their cars are experiencing difficulty starting, the coolant temperature is rising too high, and the oil is forming sludge, like rubber. It's causing the engine to seize."
Faced with these complaints, Xie reached out to the manufacturer—Yongbiao (Wuhan) Petrochemical Company. Unfortunately, the company hasn't provided a clear solution yet. In fact, things seem to be getting worse. According to Xie, the company’s sales team had distributed products nationwide, but many have now returned to Wuhan. Worse still, distribution managers in Jiangxi and Fujian were even detained locally. To resolve the situation, the company reportedly paid 50,000 yuan to get them back.
Xie explained, "In Jiangxi, a manager named Chen was held for a week. After that, salespeople from other regions started spreading the news. I used to work as a salesman for this company."
So what exactly is wrong with Yongbiao’s lubricants? On September 4th, accompanied by the dealer, a reporter visited Yongbiao Petrochemical Company located at No. 2 Jiangan Road, Jiang’an District, Hankou. Inside the manufacturing plant, only four workers were pouring oil into a tank, and the sound of oil being poured was clearly audible.
On the other side of the facility, empty oil containers were stacked high. The labels on top indicated two different brands. A worker transporting the containers said, “These oils were returned from across the country, totaling 2,000 tons.â€
In the company’s office, Wang Wei, the sales manager, told the reporter that the company had been in business for 10 years and this was the first time they had faced such a crisis. He admitted that they had added 10% vegetable oil to their lubricants.
Wang said, “We only added 10% of it, but now our dealers are having headaches. My head is hurting too! How many of my customers are affected?!â€
According to industry sources, the problems reported in some vehicles in Wuhan are linked to the addition of vegetable oil in the lubricants. Although these oils may appear to meet standard physical and chemical specifications, the high content of unsaturated hydrocarbons makes them prone to oxidation, leading to sludge formation, clogged filters, and blockages in the engine system.
Meanwhile, reports of faulty lubricants have also spread across North China. Some companies conducted lab tests and found that the oils were made by blending vegetable oil with mineral oil, with vegetable oil making up as much as 20–30%. This has raised serious concerns about product quality and safety.