What is the difference between cars running on gasoline and natural gas?

[MacEdward]

Cars running on gasoline and natural gas differ in the following aspects: 1. Fuel type: Gasoline-powered cars use gasoline as fuel, while natural gas-powered cars use natural gas. 2. Ignition point: The ignition point of gasoline is 427°C, whereas natural gas ignites at 650°C. 3. Fuel storage method: Gasoline is stored in iron-rubber fuel tanks, while natural gas is stored in high-pressure steel cylinders. 4. Economic efficiency: Running on natural gas is cheaper than gasoline, approximately half the cost (depending on specific conditions), but natural gas provides less power than gasoline. This is because most car engines are designed for gasoline, so using natural gas may result in noticeably insufficient horsepower.

[DeRonan]

I think the biggest difference between gasoline and natural gas is the impact on the wallet. Gasoline is expensive, costing around 8-9 yuan per liter, while natural gas is only about 4 yuan. My car saves over 30 yuan in fuel costs every 100 kilometers when running on gas, easily saving 600-700 yuan a month on commuting. However, converting to a natural gas system costs 4,000-5,000 yuan, and you have to make space in the trunk for the gas tank. In summer, when using air conditioning or climbing hills, the power is a bit weaker, and you need to press the accelerator deeper to get enough force. For long trips, some small towns have very few gas stations, so you need to check the route in advance. For someone like me who commutes 50 kilometers every day, the conversion cost is recouped in just two years.

[DiHolden]

As someone who has driven a bi-fuel vehicle for ten years, I find the difference in power response most noticeable. When running on gasoline, a light tap on the accelerator delivers instant power, especially handy when overtaking. Switching to natural gas makes acceleration feel like wearing a wet cotton-padded jacket, with the engine sounding muffled—I estimate about a 10% drop in power. However, cold starts are more stable with gas; it fires right up even in sub-zero winter temperatures without sputtering. On highways, I feel more at ease switching back to the fuel line, since not every service station has a gas refill nozzle. The large gas tank permanently occupies the trunk space, meaning one less suitcase for family trips.

[GiannaMarie]

Last time I modified my car, the mechanic told me that the environmental benefits make more sense. Natural gas burns cleanly, leaving almost no black soot in the exhaust pipe, and the annual emissions test always passes on the first try. Environmental regulations are strict in our area, and gas-powered vehicles get two fewer restricted driving days. Although there are fewer gas stations, there's rarely any queue, saving time compared to refueling at petrol stations. The only downside is that the gas tank needs inspection every three years, which is troublesome and costly to remove and reinstall. During hot summer days, I always feel a bit nervous and try to avoid parking in direct sunlight. The range anxiety is quite annoying, and it always gives me a startle when the system automatically switches back to the petrol line after running out of gas.

[SanDakota]

There's a significant difference in maintenance costs. Natural gas doesn't produce carbon deposits, spark plugs can last up to 80,000 kilometers before needing replacement, and the engine internals stay cleaner than with gasoline. However, valves wear out more easily – I have to adjust the valve clearance every 30,000 kilometers. The sealing rings on the refueling nozzle need replacement every six months, otherwise gas leakage poses safety risks. In winter, gas stations often have long queues, and you have to wait for frozen pipes to thaw. The biggest hassle is emergency situations in remote areas – once when I ran out of gas in mountainous terrain, even the tow truck driver couldn't find a natural gas-compatible tow vehicle.

[DaisyMarie]

When I first converted to LPG, I was particularly concerned about safety. The liquefied gas tank is actually more robust than a fuel tank, with double-layer steel walls and an explosion-proof valve, providing more buffer space in case of a rear-end collision. However, during summer, I often noticed a faint gas smell when parking in underground garages, which turned out to be due to aging rubber seals at the refueling port. I have to conduct leak tests at least twice a month, applying soapy water to all pipeline connections. Insurance costs about 15% more, and the claim terms are particularly complicated. It's quite annoying that staff don’t allow phone use during refueling, making the queue time especially boring.