LPG conversion/availabilty

mr.me

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Anyone had any experience with LPG powered motors and the availability of same.

Just thinking that I would like a larger (luxury) type car without all the additional running cost, although I don't do many miles per annum.

 

meninblack

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I haven't had one, but you see these conversions a lot on older Jags and Rollers where there was never a diesel option. It needs to be done properly by specialists, but other than that the only drawback seems to be that you can't take them through the channel tunnel.

 

mr.me

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I the only drawback seems to be that you can't take them through the channel tunnel.
Haha! With the amount of miles that I do I'd never reach the channel tunnel

 

meninblack

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If you do a tiny mileage it probably won't be worth getting it done financially - so look for a car that has already had a specialist conversion.

 

mr.me

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If you do a tiny mileage it probably won't be worth getting it done financially - so look for a car that has already had a specialist conversion.
Well, that's my general idea,would also like to know how available it is. Do most garages carry it?

 

Samantha

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Also check the LPG forums.

Apparently some cars work really well with the conversion, some don't.

They all use more fuel on LPG than petrol, but of course the fuel is much cheaper. However in some cases, the worse fuel consumption is so much worse, it largely eradicates the fuel price saving. Someone I knew found this to be the case with a Lexus IS200.

Although as MIB says, even on a car where it works well, if your mileage is low, the pay back would take a long time and perhaps not be worthwhile.

 

meninblack

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map here: http://www.lpgmap.co.uk/

- - - Updated - - -

Seems to work best on big engines where a loss in power isn't noticeable and fuel consumption on petrol is very high: hence big Jags, Rolls etc...

 
G

geoffp67

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lots af garages have it, but mot dont. see the lpga website for a list of those that do

there are some ropey conversions about. Worst are the single-point ones which sometimes squirt the fuel into the air inlet, Im told its safe as there is a cut-off component, but you know about old wiring on old cars, cant be relied on.

Best are the modern multi-point fully sequential systems, by the better manufacturers. These are complicated to set up, and "sevicing/repairs" can cost more than the fuel saving.

Do bear in mind that the engine will run the first few miles on petrol befre switching over to lpg, so there is no saving to be had on short journeys. Some engines even need a valve-lubricant for the lpg system, this stuff is very expensive.

Best advice - do your homework before you buy. Always buy a car on condition, avoid the SH1t3 ones.

There are some very good big diesels out there.

 

meninblack

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There aren't really any diesel luxury cars though. Maybe the latest XJ at a stretch, but they are dear. The German ones are just taxis.

 

Ozexpat

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I looked into LPG quite deeply because many of my cars in Oz were Gas powered. The right conversion is essential. Expect to lose 10-15% power and equivalent figures for MPG loss. Ignore scare stories about incendiary tanks. All tanks must have pressure release valves and it doesn't get hot enough here to put the valve under enough pressure anyway.

High mileage and keeping the car for a good few years is essential to pay for the cost of conversion.

Gas availablity is really haphazard in the UK. While virtually every fuel station has an Autogas pump in Australia, they are as rare as rocking horse shit over here.

As was mentioned earlier, get onto an Autogas forum. All will be revealed.

For the record, I gave up on the idea and bought a diesel.

 

meninblack

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If you really do a very low mileage, just suck up 10-20 mpg and enjoy luxury motoring in its un-tainted form. :^ :D

 

Samantha

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If you really do a very low mileage, just suck up 10-20 mpg and enjoy luxury motoring in its un-tainted form. :^ :D
:^

- - - Updated - - -

Take advantage of the fact you can buy a £50k+ luxury car for peanuts due to most being tied to fuel economy figures

 

mr.me

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:^ - - - Updated - - -

Take advantage of the fact you can buy a £50k+ luxury car for peanuts due to most being tied to fuel economy figures
Examples please :)

Not sure that diesel is a good option as I don't think they like low mileage, something about engine bits clogging. (you'll notice the technical jargon here)

 

meninblack

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I wouldn't bother with the diesel XJ unless high mileage. The petrol V8 is so much more refined, more powerful, more effortless and a more rewarding drive. Cheaper, too!

 

eastsoutheast

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What about a Lexus GS450H? It does 0 to 60 in 5.5 seconds so is fast, its extremely comfortable, will probably run for 20 years!!! Best of all it does a real 35 mpg from a mixture of real world driving. What car tested an Audi 2.0TD that did an actual MPG of 32 so the GS MPG is pretty impressive.

If the GS is not big enough there is always the LS600H,

Good Luck

 

meninblack

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We are talking luxury cars here, not Chelsea tractors...

 

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