{"id":12218,"date":"2025-08-25T10:30:10","date_gmt":"2025-08-25T08:30:10","guid":{"rendered":"https:\/\/www.gok-blog.de\/?p=12218"},"modified":"2026-06-15T13:26:15","modified_gmt":"2026-06-15T11:26:15","slug":"gas-filter-for-fixed-lpg-tanks-essential-when-campers-refuel-with-autogas-for-motor-caravans-and-caravans","status":"publish","type":"post","link":"https:\/\/www.gok-blog.de\/en\/gas-filter-for-fixed-lpg-tanks-essential-when-campers-refuel-with-autogas-for-motor-caravans-and-caravans\/","title":{"rendered":"Gas filter for fixed LPG tanks: Essential when campers refuel with autogas for motor caravans and caravans?"},"content":{"rendered":"

Anyone travelling in a motor caravan or caravan with a fixed LPG tank usually refuels with autogas and does not have conventional bottled gas from 5 or 11 kg gas cylinders in the system. This has practical advantages \u2013 but can also have technical consequences. Why this is the case, what role oil residues play, and how a special LPG tank filter from GOK addresses this issue precisely, is explained in this blog article.<\/p>\n

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More and more campers are opting for fixed LPG tanks in their motor caravans, caravans or expedition vehicles. This is convenient, saves bottle exchanges and allows refuelling with autogas across Europe \u2013 thanks to special adapters. What many don\u2019t consider: autogas is not always exactly the same as conventional, refined bottled gas. Presumably, it contains far more residues, particles or oil aerosols which, over time, can damage the LPG system. The consequences: contaminated and oil-fouled pressure regulators, impaired gas appliances or even complete failure of system components or consumer devices such as heaters or fridges.<\/p>\n

The simple and effective solution for anyone wanting to protect their equipment: an LPG tank filter! And GOK offers just that \u2013 specially designed for this application. In this article, we show why it\u2019s worth using, how it works and what users should bear in mind.<\/p>\n

<\/span>What is autogas \u2013 and how does it differ from bottled gas?<\/span><\/h2>\n

Autogas \u2013 also known as LPG (Liquefied Petroleum Gas) \u2013 consists, like bottled gas, of a propane-butane mixture. The key difference, however, lies in the composition, processing and quality assurance. While conventional bottled gas must consist of at least 95 percent propane and propene and is specially purified and standardised for sensitive LPG systems, the composition of autogas can vary, as it is primarily intended as a fuel for internal combustion engines using liquid withdrawal.<\/p>\n

Depending on the country of origin and the filling station, autogas may contain additives, lubricants or other residues. These residues pose no problem when refuelling vehicles \u2013 but in gas-powered domestic appliances such as fridges, heaters or boilers in motor caravans, they can be critical. There, they may settle out of the gas phase as oil mist, deposits or particles in the LPG system and cause malfunctions or defects.<\/p>\n

From a purely formal perspective, however, there is no drastic difference in quality<\/strong> between autogas from filling stations and conventional bottled gas \u2013 both must meet strict purity requirements. A clear scientific distinction has not yet been proven, especially since most analyses by suppliers show no significant contaminants. The DVFG quality checks also regularly return inconspicuous results.<\/p>\n

Nevertheless, many campers report from experience<\/strong> that autogas tends to leave more residues in the gas phase. These fine impurities \u2013 such as paraffins, oil aerosols or minute particles \u2013 have in fact been detected in filter systems and faulty regulators, even if they occur only in very low concentrations in the gas. For campers, this means: prevention is better than cure<\/strong>.<\/p>\n

\"Autogas
Autogas (LPG) is a common energy source for leisure vehicles, used to fill fixed-installed gas tanks or so-called gas cylinder tanks. However, residues in the gas can affect sensitive appliances such as the refrigerator or the heater.<\/figcaption><\/figure>\n

<\/span>What can happen if unfiltered autogas flows through the system?<\/span><\/h2>\n

Even though autogas is generally clean, even the smallest amounts of paraffins or suspended matter are enough to affect sensitive components of the LPG system in a motor caravan or caravan.<\/p>\n

Particularly affected are:<\/p>\n