Does converting a car to natural gas harm the engine?

2 Answers
VanAllison
07/29/25 7:02am
Converting a car to natural gas does not harm the engine. The benefits of switching from gasoline to natural gas include: 1. Natural gas mixes easily and evenly with air in the engine, resulting in more complete and cleaner combustion with less carbon buildup. It has good anti-knock properties, does not dilute lubricating oil, and can extend the engine's lifespan and the service period of the lubricating oil. 2. Compared to petroleum fuels, gaseous fuels have smaller energy losses during preparation, emit fewer harmful pollutants, and are more environmentally friendly. 3. Natural gas itself disperses quickly into the atmosphere if there is a slight leak. All components of the gas fuel system, especially the sealing parts, undergo strict inspection, making natural gas a relatively safe automotive fuel.
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EthanLee
08/12/25 10:24am
As someone who's modified quite a few cars, I'm telling you that converting to natural gas does have certain harms to the engine. Natural gas burns at higher temperatures than gasoline, which can accelerate wear on internal engine components like pistons, valves, and spark plugs. Running like this for extended periods can make the engine noisier and may reduce power. Poor sealing during installation could also lead to gas leaks, which isn't safe. But the good news is, as long as the conversion is done by professional shops using high-quality kits, with regular maintenance like nozzle cleaning and pressure checks, the harms can be significantly reduced. When driving, maintain steady engine temperature and avoid sudden acceleration. Saving money is good, but you need to weigh it against the increased engine burden.
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