How to convert an existing car into a CNG vehicle

Apr. 07, 2022

In this article, we will cover the following ...... Stay tuned!!!


Main content.

1. Introduction

2. Which is better - gasoline or CNG?

3. CNG kit conversion - points to note and advantages

4. CNG after-sales service


1. Introduction

With the increasing pollution in all metro cities, governments have no choice but to implement stricter exhaust emission standards. CNG fuel is considered a green fuel that emits less harmful exhaust gases.

This has led to the development of different methods suitable for reducing the amount of harmful emissions from vehicle exhaust. The different approaches include the introduction of 100% electric vehicles and some major or minor changes to diesel and gasoline engines to meet these requirements. One such option has existed among us for a long time and is more reliable than ever. Installing CNG (Compressed Natural Gas) packages in gasoline vehicles. 

It is a myth that CNG is unsafe. Now, after several years of development, the technology to run gasoline vehicles on CNG has become safe and efficient. The average cost of CNG is much lower compared to the other two. There are advantages and disadvantages to driving a car on gasoline and CNG.

How to convert an existing car into a CNG vehicle


2. Which is better - gasoline or CNG?

Both CNG and gasoline have their advantages and disadvantages, depending on the parameters. The way you can study the fuel is.

Pollution - Gasoline emits more harmful gases such as Nox and Cox, CNG on the other hand is known for producing less harmful gases but emitting less harmful greenhouse gases.


Performance - Gasoline comes out ahead. Engines running on gasoline have more power than comparable engines. 

● Safety - Consider that CNG is safe, but not as safe as gasoline. As a gas, it is more likely to leak and catch on fire.

● Convenience - The biggest disadvantage of CNG is that it reduces the boot space to accommodate the huge CNG cylinders. CNG is not available everywhere as a fuel. Installation may result in changes to the vehicle's vehicle dynamics.

● Economical - Considering the price of gasoline and CNG gasoline is a less economical solution. The cost per liter of gasoline is higher compared to other fuels. In addition, long-term use of CNG vehicles is more costly than gasoline vehicles. However, do the math and add all the influencing factors CNG is about Rs. 3-4 per kilometer cheaper than its competitors' fuels.


3. CNG kit conversion - points to note, advantages and components

Any car that runs on gasoline can be retrofitted with a CNG kit and can run on CNG.

● These types of kits are universal and can be stacked according to the car, resulting in less safety.

● The total cost of the vehicle is lower than a factory installed CNG kit.

● The biggest disadvantage of retrofitting a CNG kit into a vehicle is that the customer loses the vehicle warranty.



● Unlike CNG, it has a high octane rating of about 120 to 130.

● In terms of combustion, the engine performs a better combustion process, resulting in cleaner exhaust emissions. Emissions can be reduced by up to 80% compared to vehicles running on other fuels.

Vehicles running on CNG have lower NVH (noise vibration harshness) levels.

● The overall operating cost of the vehicle is quite low.


Points to note.

● It is necessary to check that the person installing the CNG kit is using the correct genuine CNG kit.

● It is important to note that all equipment installed on the vehicle is new.

● CNG tanks are Hydro tested to prevent any leaks.



Installing an aftermarket CNG kit is a typical task. It should be done by or under the guidance of a professional. The components for a successful CNG kit retrofit are.

1. Pressure regulator

2. Gas/air mixer

3. CNG filling valve

4. High pressure line

5. CNG tank and valve

6.Gasoline/CNG selector switch

7.Pressure gauge

8.Heating system

9. Simulator


4. CNG after-sales service

After installation, the work does not end there. There are some specific guidelines for vehicles running on CNG.

● The oil grade of CNG vehicles is different from other similar products.

● Vehicle engines are more prone to wear because there is no fluid inside the engine, so the engine needs to be checked frequently to prolong the life of the engine.

● Running a vehicle on CNG will definitely have a negative impact on the performance of the vehicle. Therefore, patience is necessary when driving a vehicle.

● The vehicle's air conditioning gets its drive from the engine, adding more load. CNG may or may not affect the vehicle's cooling system.


For a one-on-one CNG retrofit consultation, contact us here!

contact us for more information


+86 152 5848 3204

+86 152 5848 3204

No. 318, Guanyin Road, Economic Development Zone, Anqing, Anhui, China

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