When it comes to petrol-CNG cars, they offer lower running costs than petrol-only models. The reason behind this is that the driver can select to drive the car in CNG mode instead of petrol, which ensures higher mileage. However, the upfront costs for the petrol-CNG models are a bit higher than their petrol-only counterparts. Solution: CNG is better than LPG in terms of mileage, but its conversion cost is more than that for LPG. If we see the performance, then LPG is affecting the engine performance at a minimum level while CNG reduces the power of the engine approximately 10%. Q.2: Specify some common disadvantages of both CNG and LPG. Natural gas powers more than 175,000 vehicles in the United States and roughly 23 million vehicles worldwide. Natural gas vehicles (NGVs) are good choices for high-mileage, centrally fueled fleets because they can provide similar fuel range support for applications that stay within a region supported by reliable compressed natural gas (CNG) fueling. Liquified petroleum gas (LPG) is a flammable gas, which forms as a by-product of fossil fuels such as natural gas and coal. LPG is usually made up of propane and butane hydrocarbon gases, however in Australia it is mainly propane-based. While it never forms in isolation, LPG is still considered a fossil fuel, as it is produced as a result of Running on LPG . LPG is not as fuel efficient as CNG or petrol and usually gives a slightly lower mileage. But the conversion costs to LPG are lower. A good kit for the Honda City would cost about Rs. 25,000 on average. Cylinder sizes are smaller than CNG, but have similar capacity. The advantage is that it saves on boot space, in case you want From past experience on forklifts, I liked the power that LPG gives better than CNG, and LPG is available at most RV Places, U-Haul stores, etc But CNG stations are starting to popup and a refill nozzle can be installed at home to refill in the garage Natural gas, a fossil fuel composed of mostly methane, is one of the cleanest burning alternative fuels. It can be used in the form of compressed natural gas (CNG) or liquefied natural gas (LNG) to fuel cars and trucks. Dedicated natural gas vehicles are designed to run on natural gas only, while bi-fuel vehicles can also run on gasoline or diesel. Moreover, CNG vehicles are quieter than gas and diesel vehicles, achieving decreased noise tainting. 3. Safety. In case of an impact, CNG chambers are less risky than fuel and diesel tanks due to their size, construction, and area inside the vehicle. bNOr.