All normally aspirated petrol engines can be converted inc some turbo or supercharged engines.

Our FES Autogas trained installers around the UK will fit the best FES Autogas assembled LPG kits with corresponding technologies for different types of engine and vehicles, needless to say an old carburetor mini would have a different system to that fitted on a new BMW, but both would run just as well as each other.

The installer would next look at the best size of tank for you and location of filler point. Because FES Autogas installers work with classic and expensive vehicles on a daily basis they understand that the filler needed to be sited in a sensible position. They will try not to locate them too low down under bumpers as this is very unpractical when going to fill up and when you’re wearing your best clothes! We've found on some vehicles the filler can be mounted in the same place as you fillip with Petrol under the flap. They can advise on size of tanks to fit most applications but again they involve you the owner in this part.

If you’re using the vehicle for specific things then there is no point the installer suggesting a small tank if you do long journeys or a big tank if you only pop around town or carry loads? We can supply our customers with a huge range of tanks all pre assembled in house here at FES Autogas and with test certificates for next day delivery to our customers.

When fitting the LPG system our installers find that we can, whenever possible, run the pipes and cables where existing routes are. The only place you'll see some noticeable changes are in the engine bay where the gas line will go into its second safety shut off solenoid (first one in tank) before reaching the vaporizer, which on some occasions comes with a third, shut off solenoid. These gas solenoids are fitted so that the gas will be stopped if the engine stalls and has the ignition turned off - making leaking gas a non occurrence.

When the engine is running and at the vaporisers the liquid becomes a gas before travelling to the induction mixers as on earlier carburetor engines or injectors for later engines. For later generation vehicles, with advanced injector systems we can supply feedback systems and the latest OMVL Dream 21 Gas injection system all pre assembled to be vehicle specific and tested before it leaves us. These Dream 21N systems use the cars existing computerised ECU (engine control unit) which interfaces with your car's existing sensors.

For instance, the TPS (throttle position sender) and the lambda sensor (which normally adjust the petrol mixture) are all feedback via the cars petrol ECU to the gas ECU so that the engine will run at optimum performance and efficiency.

We don't supply DIY kits as FES Autogas as we are a trade only suppler and all our kits are assembled in house for vehicle specific orders and to our trained dealers but we can offer discounted training courses to DIY installers to help them step on to becoming a fully authorized FES & OMVL installer should that be of interest.

Inside the vehicles interior is where you find the other noticeable change, the gas/petrol changeover switch. This as it says is used to choose which fuel you want to run on. They need to be sited so that the driver can clear see them to switch between fuels but also to see the LEDs which give tank amounts so you know when you’re running low.
On carburetor cars you have a manual change over switch but on injection cars you have a switch which allows the car to start on petrol but after passing pre set revs changes the fuel to gas.

The tank gauge has 5 LEDs, 4 green and one red. Each of the 4 green lights representing roughtly 25% capacity with the fifth red light warning that gas is about to run out so tank needs refilling or you will have to switch back to petrol.

Once fitted the LPG system will make no major difference to any servicing requirements to your vehicle. Infact we can easily say that the service intervals could be stretched. With running mainly on gas the spark plugs and oil would last much longer in optimum condition, although we do not recommend increasing service intervals as many other important components such as brakes and air filter would need servicing at normal factory set schedules.

The fact is, when your installer orders a pre assembled FES autogas system, they and you will be assured you get the right parts and the right system for your car. There is no such thing as a universal system!

More questions? Simply contact us.