LPG safety
LPG is considered safe technology when properly installed and regularly inspected. Even so, many myths persist. Here are the key facts.
How is the gas tank built?
An LPG tank is a pressure-resistant steel vessel, built much sturdier than a petrol tank. It has several safety devices:
- Fill stop: limits filling to about 80 percent so the gas can expand.
- Pressure relief valve: releases gas in a controlled way if the pressure gets too high.
- Solenoid valves: shut off the gas supply when the engine is off and on loss of pressure.
- Check valve and shut-off valve: prevent uncontrolled leaks.
Underground and multi-storey car parks
In Germany, vehicles with an approved LPG system may generally park in underground and multi-storey car parks under current approval rules. Individual operators may have different house rules. Other countries sometimes have different regulations. Look out for signs and ask if in doubt.
Ferries, tunnels, car trains
Depending on the operator, special rules apply, for example on the maximum fill level, shutting off the tank or registration. Find out before booking and declare the LPG system.
What happens in an accident?
The tanks are designed for loads that would damage a petrol tank. If gas escapes, it is heavier than air and collects near the ground. Leave the vehicle, keep your distance, avoid ignition sources and call the emergency services. Tell them the vehicle has a gas system.
Common myths
- "LPG explodes in the heat." The pressure relief valve and the tank design prevent that in normal use.
- "You are not allowed in tunnels." For cars running on LPG there are mostly no tunnel bans; exceptions mainly concern special tunnels and individual operators.
- "A gas system needs a lot of maintenance." It needs regular checks, but not excessive effort.
Filling up safely
Engine and ignition off, no smoking, fit the adapter cleanly, lock the nozzle, do not top up beyond the fill stop. How this works with adapters is in filling connectors and adapters.
This is general information and does not replace advice from a specialist workshop or inspection body.