Low ash engine
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Torque Limit? Flameout? Low Ash Engine Oil Saves Your Aftertreatment

In the sixth national year, “limited torsion”, “boring” and “flameout” have become hot topics among card friends. Due to the higher emission limit of guoliu truck, the post-processing is also more precise. Therefore, if there is a problem with post-processing, the vehicle will naturally limit the speed and torque, resulting in the vehicle “boring” or even “flameout” of low ash engine.

What Is The Speed Limit? Which Part Is Wrong Of Low Ash Engine ?

In today’s trucks, many models are equipped with post-treatment particulate filter, which is often called DPF (diesel particulate filter). It is like a filter cotton in a vacuum cleaner, which can collect soot, toner and other particles in the low ash engine exhaust.

When the soot toner is fully collected, the vehicle needs DPF regeneration. Whether it is passive regeneration during driving or active regeneration after stopping, it is a way to burn up the toner through high temperature and convert it into carbon dioxide to be discharged out of the vehicle. If the exhaust cannot be cleaned, the DPF will be blocked over time, and the vehicle may be limited to speed and torque, or the engine will be “boring” due to poor exhaust. Therefore, the speed limit and torque limit of the vehicle may be a problem with the DPF.

Where Does Dpf Blockage Start? Why Doesn'T Regeneration Work?

Under normal circumstances, the carbon ash generated after diesel combustion is accumulated in DPF. When the vehicle runs at high speed, the high-temperature exhaust of the engine will make the carbon ash burn into carbon dioxide. When the passive regeneration is invalid, the vehicle can run at the high speed of the engine in situ, so as to improve the exhaust temperature and clean up the carbon ash. However, there is a kind of tail gas particulate matter, but DPF regeneration has no effect low ash engine.

In order to ensure longer service life and better working effect, the cylinder interior of today’s engine will be honed. In honing, a layer of fine mesh pattern will be carved on the inside of the cylinder. These reticulated lines are designed to retain the oil and improve the lubrication performance low ash engine.

When the cylinder burns, the oil in the reticulated pattern will be heated and burned instantly, and this part of the oil may produce some ash particles, which will be discharged with the tail gas. Card friends know that there are base oil and additives in the composition of engine oil, and these additives inevitably contain some metal components, which will also lead to the ash of engine oil combustion. Some of them can not be treated through combustion, and these components can only be treated in post-treatment.

How To Solve The Post-Treatment Blockage?

In the face of DPF blockage caused by this situation, generally, we can only choose to replace the DPF or disassemble and clean it manually. But as the saying goes, “it’s better to prevent early than to make up for it.”. In fact, in the process of vehicle maintenance, with a little attention, the problem of post-treatment blockage can be greatly reduced or even avoided.

The solution is very simple. Where the ash in DPF comes from, we will solve it. The use of low ash engine oil can undoubtedly reduce the generation of soot in the tail gas and reduce the blockage of DPF. This is also highly recommended by many manufacturers.

When it comes to engine oil, I believe everyone will have a yellow shell mark in their mind. Yes, shell, which gives most people the first impression of engine oil, also has shell Jinba ck-4 engine oil suitable for trucks in the fifth and sixth countries. Moreover, this engine oil also uses a fully synthetic base oil and a formula with low sulfur, low phosphorus and low ash.

Take shell Jinba K10 engine oil as an example. This engine oil uses fully synthetic base oil and low sulfur, low phosphorus and low ash formula. How do you understand these formulas? With low sulfur content, the engine oil is not easy to be acidified prematurely, and its protection cycle and protection capacity will be longer. Similarly, phosphorus may also cause corresponding problems low ash engine.

In addition, the most important is the low ash formula. The engine oil with low ash formula can produce less ash in the combustion process, so that less non combustible ash can enter the DPF. In this way, our DPF is less prone to problems. In addition, shell Jinba fully synthetic ck-4 engine oil can be compatible with national five vehicles, bring better protection to the engine and 100000 km oil change mileage, which is more practical of low ash engine..


The official implementation of the national six standard has entered the countdown stage. In fact, as long as we take care of the national six standard, it is not terrible. And careful maintenance starts with good engine oil. Among them, shell Jinba ck-4 oil is definitely a rare good choice.

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