Liquid gas can be filled at more than 7100 service stations in Germany, according to the DVFG. Across Europe, this is even possible at 40,000 filling stations. Thus, the range of LPG vehicles has increased significantly in recent years.
The cost of LPG conversion varies depending on the engine type: "It depends on the cylinders. We start at 1,900 euros for the four-cylinder and end at 3,500 euros for the Porsche Cayenne's 4.8-liter engine with direct injection."
Depending on driving style and vehicle type, up to 400 kilometers can be covered on one tank of LPG with today's tank sizes. With bivalent gas vehicles (gasoline and gas), the total range can increase to 900 kilometers.
However, the consumption of LPG increases by up to 20% compared to gasoline. The price of LPG in Stuttgart, for example, is currently a favorable 0.57 euros per liter of LPG. A realistic price of 0.69 euros results if one adds the additional consumption.
Only gasoline engines are suitable for conversion to gas. For a long time, there were restrictions on gasoline engines with direct injection because the injection nozzles can overheat in gas mode. "No engine that comes from the factory is gas-tight. So you have to protect them with software," Mies says. "Actually, there is only me left as a pure autogas workshop in the Stuttgart area. After a few years, we understood how to protect the engine so that nothing happens.