Seton Gardens, Longniddry, East Lothian EH32 0PG
Tel: 01875 811651 Mobile: 07768 566197

Frequently Asked Questions about LPG conversions

What equipment is involved?

A conversion kit is comprised of a filling point, a tank/tanks, a multivalve, pipework, vapouriser, solenoids, change-over switch, simulator, a lambda e.c.u and mixer. At Seton Engineering we use gas conversion kits, manufactured by Bedini®, an Italian company, which has been specialising in the manufacture of L.P.G. kits for the last 45 years.

Will the conversion change the appearance of my vehicle?

The conversion kit itself will not make any major changes to the general appearance of the vehicle. The vapouriser and majority of the pipe work are concealed within the engine compartment and are therefore not visible from the outside. The tank/tanks can sit either inside the vehicle or outside (under the sills for example), and can usually be disguised so as not to be noticeable. No cutting of bodywork is required to fit the actual kit. The only noticable difference will be a small change-over switch (measuring 7cm x 2cm) which will be attached to the dashboard inside the driving compartment.

Will the performance of my engine be reduced?

In terms of performance when running on L.P.G. there should be no noticeable difference. Electronic tests have been carried out on vehicles powered by L.P.G., and these showed a slight power loss in comparison with running on petrol, slight reduction in fuel economy, and a large reduction in the vehicle's emissions. In practice, the power loss has been found to be so slight, that it has not been noticed. The engine will sound and run smoother when on L.P.G., and the loss in fuel economy should be no more than 5% to 10% although many conversions produce no loss in fuel economy at all.

Will the conversion reduce the lifetime of my engine?

LPG burns substantially cleaner than petrol, leaving far fewer residuals. The result of this is that the oil in an LPG fuelled engine, after extended use, is cleaner and more effective. This extends reliable engine life considerably. When an engine runs on LPG, cylinder head temperatures are much higher. The result of this is less build up of carbon deposits in the cylinder head and valve areas.

Is it safe to run my car on Autogas?

In terms of safety, it can be said that L.P.G. is actually safer than petrol, as all kits are fitted with pressure relief valves (PRV's), and all tanks are pressure tested to a safety factor of 500%. Every kit has gas solenoids fitted along the pipe running from the tank to the vapouriser , which act as cut-off switches when the engine is running on petrol, or in the event of the engine stalling. When an internal tank is fitted, or when the hose runs inside the vehicle, moplen hose is fitted as a standard safety feature.

Will my car insurance be affected?

No. Seton Engineering are an LPGA approved installer which means that your insurance will stay the same.

Where can the gas tank be fitted on the car?

The tanks may be mounted either externally or internally on a vehicle. In general, if you have a space on your vehicle which you think may be suitable, we can find a tank which will fit. Many people opt for multi-tank conversions, with all tanks fitted externally, in order to gain the maximum mileage range without losing space inside the vehicle. Many 4x4s provide an ideal base for a multi-tank conversion, with space under the sills, in place of the petrol tank, and other spaces along the chassis rails.

Using a Range Rover as an example, utilising the spaces externally and the boot space, it is possible to fit tanks in 8 different positions, and still use a 45 litre petrol tank. Many companies will only fit tanks in the boot space of a vehicle, but we say if you can find a space elsewhere then we will happily fit a tank there for you, provided that it is safe to do so.

One of our specialities is fitting a four tank conversion to Range Rovers, utilising the space where the petrol tank sits and fitting a smaller 47 litre petrol tank between the driver's side rear wing and the chassis rail, although still using the original petrol filling point on the body of the vehicle. This is then combined with two undersill tanks, giving a maximum gas capacity of 150 litres with no reduction in rear load space.

What happens if I can't find a filling station in time before I run out of gas?

When you run out of Autogas you still have your original petrol tank to fall back on. It takes a mere flick of a switch to change the fuel source back to petrol or diesel. LPG Filling Stations in the Lothian Region.

If you would like to download a list of all the filling stations in the UK, you can find a PDF Document here: LPG Refuelling Sites in the UK. (41 pages, broadband connection recommended). Seton Engineering are not responsible for the content of external internet sites.

Where can I get more information on LPG?

More information can be found on the Boost LPG website and the website of the UK LP Gas Association (Seton Engineering are not responsible for the content of external internet sites).