What are the best practices for maintaining and servicing natural gas vehicles?

1 Check the fuel system regularly

The fuel system of an NGV consists of several components, such as the fuel tank, the fuel lines, the pressure regulator, the fuel injectors, and the fuel filter. These components are exposed to high pressure and temperature, and can deteriorate over time. Therefore, it is important to check the fuel system regularly for any leaks, cracks, corrosion, or damage, and replace or repair any faulty parts as soon as possible. You can use a soap solution or a gas detector to test for leaks, and follow the manufacturer's guidelines for the inspection intervals and procedures.

2 Change the oil and filter frequently

The oil and filter of an NGV need to be changed more frequently than those of a gasoline or diesel vehicle, because natural gas tends to dilute the oil and reduce its lubricating properties. This can lead to increased engine wear and tear, and reduced performance and efficiency. The oil and filter change intervals depend on the type and quality of the oil, the driving conditions, and the engine specifications, but a general rule of thumb is to change them every 3,000 to 5,000 miles or every three to six months. You should also use a high-quality synthetic oil that is compatible with natural gas engines.

3 Monitor the spark plugs and ignition system

The spark plugs and ignition system of an NGV are subject to higher stress and heat than those of a gasoline or diesel vehicle, because natural gas has a higher octane rating and requires a higher compression ratio. This can cause the spark plugs to wear out faster, and the ignition system to malfunction or fail. Therefore, you should monitor the spark plugs and ignition system regularly, and replace or adjust them as needed. You should also use spark plugs that are designed for natural gas engines, and have a higher heat range and a smaller gap.

4 Clean the air filter and intake system

The air filter and intake system of an NGV are responsible for delivering clean and sufficient air to the engine for combustion. However, over time, the air filter can get clogged with dust, debris, or moisture, and the intake system can get contaminated with oil or carbon deposits. This can reduce the airflow and the engine performance, and increase the emissions and the fuel consumption. Therefore, you should clean the air filter and intake system regularly, and replace the air filter as recommended by the manufacturer.

5 Follow the safety precautions

The safety precautions for an NGV are similar to those for any other vehicle, but with some additional considerations. For example, you should always park your NGV in a well-ventilated area, away from sources of heat or ignition. You should also avoid smoking or using any open flames near your NGV, and keep a fire extinguisher handy in case of emergency. You should also be aware of the signs of natural gas leakage, such as hissing sounds, rotten egg smell, or frost formation on the fuel tank or lines. If you suspect a leak, you should turn off the engine, evacuate the vehicle, and call for help.

6 Consult a certified technician

Finally, one of the best practices for maintaining and servicing natural gas vehicles is to consult a certified technician who has the proper training, equipment, and experience to handle NGVs. A certified technician can perform a comprehensive inspection, diagnosis, and repair of your NGV, and ensure that it meets the safety and emission standards. You can find a certified technician through your NGV dealer, your local NGV association, or the National Institute for Automotive Service Excellence (ASE).

7 Here’s what else to consider

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