
It is permissible to directly discharge exhaust from a China V diesel engine. Engine Introduction: An engine is a machine capable of converting various forms of energy into mechanical energy, including internal combustion engines (reciprocating piston engines), external combustion engines (Stirling engines, steam engines, etc.), jet engines, electric motors, and more. Engine Working Principle: The majority of automotive engines operate on a four-stroke cycle. The working cycle of a four-stroke gasoline engine consists of four piston strokes: intake stroke, compression stroke, power stroke, and exhaust stroke. The working principles of two-stroke engines differ from those of four-stroke engines.

As a veteran auto technician with years of experience, I must emphasize that direct exhaust emission from China V diesel engines is absolutely unacceptable. National regulations strictly require the installation of particulate filters and nitrogen oxide treatment systems. Without these, unfiltered exhaust emissions will severely exceed pollution standards, violating environmental laws. The penalties are steep—owners caught doing this face direct point deductions and license suspension. Technically, the engine will trigger warning lights, suffer reduced power, increased fuel consumption, and accelerated component wear. I've seen numerous cases where owners modified for cost-saving, only to fail annual inspections and incur higher repair costs. Environmental health is crucial; increased smog directly impacts everyone's quality of life. My advice: stick to the factory system—safety and responsibility should always come first. Modifications simply aren't worth the risks.

As an environmentally conscious ordinary driver, I drive a China V diesel vehicle and fully understand that direct exhaust emissions are unacceptable. The standards are designed to reduce pollutants like PM2.5, and unauthorized removal of the after-treatment system would allow exhaust gases to be emitted directly, damaging air quality and affecting health. My daily driving habit is to maintain the original system to ensure compliance. The broader societal impact is important, as individual actions accumulate into environmental issues, such as worsening air pollution. Legally, we must follow the rules—illegally modifying to direct exhaust can result in fines and harm the community. From a sense of responsibility, simple modifications may offer short-term convenience but are harmful in the long run. Maintaining the system is the better approach. Let’s all take action together for bluer skies.

From driving trucks in my youth till now, the direct exhaust of China V diesel engines is really not good. Older vehicles might have managed, but modern standards are strict and engine systems are sophisticated. A friend of mine recklessly modified his exhaust to direct emission and ended up failing the annual inspection, receiving fines one after another, with neighbors complaining about the pollution from the smoky tailpipe. The car frequently had warning lights on while driving, couldn't run properly, and the repair costs were a hassle. The lesson is clear: stick to the original design to avoid trouble, prioritize safety, and keep costs low. Simply driving by the rules is much better than cutting corners.

I'm a car modification enthusiast who often works with diesel vehicles, but straight-piping the exhaust on a National V engine is absolutely not feasible. The system has ECU sensors that will trigger error codes and affect performance. Removing the aftertreatment reduces torque, worsens fuel efficiency, and significantly increases pollution. regulations require compliance, otherwise, there will be numerous issues during annual inspections. For those looking to boost power, starting with tuning software is advisable—avoid altering this part of the factory settings. Balancing modifications is key; reckless changes can backfire. Maintaining the original setup ensures smooth vehicle operation and is also responsible for health and the environment.

From a cost-saving perspective, I've calculated that directly emitting untreated National V diesel exhaust is not cost-effective. While removing the after-treatment system may save some initial installation costs, the long-term expenses are higher due to frequent fines, increased , exceeding emission standards during annual inspections leading to environmental taxes, potential insurance claim disputes, higher fuel consumption, and vehicle breakdowns. Overall costs are significantly higher. Economically, it's wiser to keep the original system with regular maintenance for lower expenses, compliance, safety, peace of mind, and benefiting both yourself and others.


