Dongfeng Honda CR-V also learned from Volkswagen to "burn engine oil", and the official response seems to be a lie

Speaking of burning oil, Volkswagen owners must be the most familiar with it. I don't know how many jokes they can make about this issue. A friend once said why he bought a Volkswagen. In fact, it was not because he didn't know that Volkswagen burned oil, but because a relative of his family ran an oil shop and he had to take care of the business. Well, this reason is perfect!

However, in Japanese cars, the phenomenon of burning oil is relatively rare, but recently many Dongfeng Honda CR-V owners complained that their 1.5T models have an abnormally high oil level problem, which is because gasoline has mixed into the oil. This is different from Volkswagen. Volkswagen's oil is mixed into the engine cylinder and burned, while CR-V's gasoline is not fully burned and evaporates into the oil, causing the oil level to rise abnormally. In short, the final result is the same: change the oil.

Dongfeng Honda has also made an official response to this matter. First, it admitted that the Dongfeng Honda CR-V did have an abnormal oil level problem and expressed sincere apologies to the majority of car owners. At the same time, it will replace the engine oil and oil filter for the majority of car owners across the country free of charge, and will give a clear solution before February 16, 2018.

But it is worth mentioning that the official did not admit that this was a design defect, nor did it think it was a quality issue. According to Yasuzo Sagawa, deputy director of Dongfeng Honda's quality management department: This phenomenon occurs because the direct injection engine's intake stroke causes the gasoline spray to adhere to the cylinder wall, and the compression stroke causes the adhered gasoline to flow from the oil seal hole into the crankcase, causing the gasoline to mix with the engine oil. The gasoline in the engine oil is then volatilized through the warm-up process, and the volatilized gasoline flows from the PCV valve through the intake manifold into the combustion chamber, where it is burned again and then discharged.

Under normal circumstances, as the oil heats up during driving, the atomized or vaporized fuel will immediately evaporate, enter the next round of combustion, and be discharged. However, in cold conditions, it is difficult for the oil temperature to rise, resulting in the fuel not being easy to evaporate and the oil level rising. Therefore, cases of increased oil in the new generation CR-V mainly occur in cold regions such as the north. The reason is that in the above process, before the gasoline has evaporated through the warm-up process, the measured oil level has already risen. The main reason is that the oil heats up more slowly during the cold winter, which is not conducive to gasoline volatilization. In summer, there will be no increase in oil.

At the same time, Dongfeng Honda said that it is no problem to increase the upper limit of the oil dipstick by 30 mm, but once it exceeds the upper limit, the oil must be replaced. As we all know, gasoline has no lubricating ability. Once the oil is mixed with gasoline, it will be diluted and the lubricating effect will decrease. If the amount is too much, it will seriously reduce the lubricating performance of the oil, thereby aggravating the wear of the engine, and this wear is irreversible. Moreover, in the maintenance manual of Dongfeng Honda CR-V, it is clearly written that the scale line cannot be exceeded.

It seems that Dongfeng Honda's official response is really embarrassing. Although the official said that it would investigate the engine of the 1.5T model, there is no plan to recall it. From the series of measures taken by Dongfeng Honda, there is always a suspicion that it wants to muddle through. However, there is still some time before February 16, 2018. I hope Dongfeng Honda can give a satisfactory answer to the majority of CR-V owners by then.

As a winner of Toutiao's Qingyun Plan and Baijiahao's Bai+ Plan, the 2019 Baidu Digital Author of the Year, the Baijiahao's Most Popular Author in the Technology Field, the 2019 Sogou Technology and Culture Author, and the 2021 Baijiahao Quarterly Influential Creator, he has won many awards, including the 2013 Sohu Best Industry Media Person, the 2015 China New Media Entrepreneurship Competition Beijing Third Place, the 2015 Guangmang Experience Award, the 2015 China New Media Entrepreneurship Competition Finals Third Place, and the 2018 Baidu Dynamic Annual Powerful Celebrity.