Thinking of LPG conversion on my car, any one had one?

Hello lovely folks.

I am thinking of converting my car to LPG, basically to save money. I do on average 20000 miles a year. My car does around 30mpg, so with LPG roughly half the price of unleaded I stand to save quite a lot and should recover the cost of the conversion ( approx £1200 ) within the first year.

So, I know the sums add up.

What I could do with some advice on is what folk have experienced who have had a conversion, in terms of performance, fuel economy, wear and tear on the engine etc. I have read up quite a lot about it on the interweb, but some first hand real life comments would be good.

Thanking you in advance, I am off to work now, so won't be able to respond to anything until I get back, which if I have my way will be sooner rather than later ;-)

26 Comments

will it affect the performance of the car?

A gas coverted car does not return as many miles to the litre as a car running on petrol.

Head gaskets are lightly to go (gas runs hotter).

A small engined diesel car (say a 1.4 206 HDI) can return better economy and could be a cheaper tax band too.

i had one for a couple of years. I also reckon diesel economy is as good and a lot less hassle

In the long hall buying a ready made car ie duel fuel vectra or such like is better all done by the dealer.
Only prob is that a year or so back the tax limit on gas was stoped it could only go up say 1.5% a year it think.
Now like diesel in the past it can creep up.
When first diesel car were around fuel was 30% of petrol price now as more peolpe have diesel cars it more
then petrol.Same will start to go up with more people going for gas.
Benifits are on some cars no road tax i think no charge to enter london.If you go with fully synthetic oil there is no need to change it for years as no carbon built up in oil.Only by product is water so might need a new exhaust quicker.

I had mine done in July I have a Honda Shuttle - it used to do 22 mpg now it does arounf 40 it is amazing, the only thing with LPG is that it does not like cold weather mine comes on automatically - as you probably already know the car will always need proper fuel to start the it switches over to LPG - so you always have to have petrol in the car - I put petrol in for the first time since August the other day. The LPG only likes to work properly when the engine is warm so the colder weather takesd a little more fuel (Petrol) in the winter than it does in the summer.

I have not looked back since having it done and reckon I have saved almost enought to have paid for it - it cost £1,000 - had it doen in a little welsh town called Ystrad Mynach - apparently people come from all over the country to this place, there was someone from Londoin there when I was there - he is cheaper than most garages

I had mine done in July I have a Honda Shuttle - it used to do 22 mpg now it does arounf 40 it is amazing, the only thing with LPG is that it does not like cold weather mine comes on automatically - as you probably already know the car will always need proper fuel to start the it switches over to LPG - so you always have to have petrol in the car - I put petrol in for the first time since August the other day. The LPG only likes to work properly when the engine is warm so the colder weather takesd a little more fuel (Petrol) in the winter than it does in the summer.

I still pay the same road tax but my car is old (T Reg) unfortunately I do not get to enter London for free unless I register that the car is LPG with Transport for London and pay £15 per year

I have not looked back since having it done and reckon I have saved almost enought to have paid for it - it cost £1,000 - had it doen in a little welsh town called Ystrad Mynach - apparently people come from all over the country to this place, there was someone from Londoin there when I was there - he is cheaper than most garages

No i have'nt

Original Poster

black gerbil1;6945772

will it affect the performance of the car?



I don't think so, but that's what I'm hoping to find out, 'innit :-D

Banned

Don't forget... You wont be allowed to take it through the Channel Tunnel (if ever you were thinking of doing so!)

Original Poster

guv;6947263

Don't forget... You wont be allowed to take it through the Channel Tunnel … Don't forget... You wont be allowed to take it through the Channel Tunnel (if ever you were thinking of doing so!)



no, I know, wasn't planning on any way :thumbsup:

My old man had gas on loads of cars when I was younger.. a couple of Jags, a Defender, and a few Range Rovers, a few he converted himself. He swore by it, and even had a few places he'd frequent where gas was 30p a litre! Times have changed a bit since then but it's still a very cheap way of running your car. He's had diesels for the last 5 years or so but bought himself a Jeep Cherokee last week for towing his boat. Surprise surprise he's got that booked in for a conversion already!

octobergirl;6946186

I had mine done in July I have a Honda Shuttle - it used to do 22 mpg now … I had mine done in July I have a Honda Shuttle - it used to do 22 mpg now it does arounf 40 it is amazing, the only thing with LPG is that it does not like cold weather mine comes on automatically - as you probably already know the car will always need proper fuel to start the it switches over to LPG - so you always have to have petrol in the car - I put petrol in for the first time since August the other day. The LPG only likes to work properly when the engine is warm so the colder weather takesd a little more fuel (Petrol) in the winter than it does in the summer.I still pay the same road tax but my car is old (T Reg) unfortunately I do not get to enter London for free unless I register that the car is LPG with Transport for London and pay £15 per yearI have not looked back since having it done and reckon I have saved almost enought to have paid for it - it cost £1,000 - had it doen in a little welsh town called Ystrad Mynach - apparently people come from all over the country to this place, there was someone from Londoin there when I was there - he is cheaper than most garages




Do you find it makes any difference to starting / stopping and the performance of the car as you drive ? I ask because as a driving instructor I dont want to do anything to the car that may make it harder to drive for the learners, but on over 30,000 miles/year I keep thinking this could save me a fortune in the long run. Thanks :thumbsup:

Original Poster

vraptorchick;6948553

Do you find it makes any difference to starting / stopping and the … Do you find it makes any difference to starting / stopping and the performance of the car as you drive ? I ask because as a driving instructor I dont want to do anything to the car that may make it harder to drive for the learners, but on over 30,000 miles/year I keep thinking this could save me a fortune in the long run. Thanks :thumbsup:



I don't think it makes much difference to the drivability of the car. I think LPG is approx 15% less powerful than unleaded, but you really wouldn't notice much difference other than high up in the rev range when you're caning it LOL, not that your pupils should be thinking of any such thing! Good question tho', the sort of thing I'm trying to suss out meself. Doing 30K a year you should save a packet :-D

Original Poster

octobergirl;6946186

I had mine done in July I have a Honda Shuttle - it used to do 22 mpg now … I had mine done in July I have a Honda Shuttle - it used to do 22 mpg now it does arounf 40 it is amazing, the only thing with LPG is that it does not like cold weather mine comes on automatically - as you probably already know the car will always need proper fuel to start the it switches over to LPG - so you always have to have petrol in the car - I put petrol in for the first time since August the other day. The LPG only likes to work properly when the engine is warm so the colder weather takesd a little more fuel (Petrol) in the winter than it does in the summer.I still pay the same road tax but my car is old (T Reg) unfortunately I do not get to enter London for free unless I register that the car is LPG with Transport for London and pay £15 per yearI have not looked back since having it done and reckon I have saved almost enought to have paid for it - it cost £1,000 - had it doen in a little welsh town called Ystrad Mynach - apparently people come from all over the country to this place, there was someone from Londoin there when I was there - he is cheaper than most garages



Thanks for that :-D, did you get a Certificate saying it was an approved conversion?

garbage456;6949284

remember LPG goes into the boot of your car as well as the petrol/diesel … remember LPG goes into the boot of your car as well as the petrol/diesel tank already and although it is half the price per litre its only about 75% of the standard MPG in the car.



doesnt always have to go in your boot, you can get a few different types of tanks; you can get a split petrol/gas tank to go in place of the current petrol tank or some vehicles there is enough room to fit an extra tank under it

My ex had his EVO converted to LPG i know he saved a lot of money as it guzzled petrol before,other than that,no idea lol

to the OP AND others -

I asked this question a few monthes back so I'm glad this has come up again , but does anyone know a list of cars / makes that are suitable / unsuitable for the conversion ?

I have a ford that I wanted converted but have heard that they are unsuitable due to the valve gaskets ???

Does nayone know if this is true , has anyone had this done on a ford or have any ideas on the list ?

Thanks

vraptorchick;6948553

Do you find it makes any difference to starting / stopping and the … Do you find it makes any difference to starting / stopping and the performance of the car as you drive ? I ask because as a driving instructor I dont want to do anything to the car that may make it harder to drive for the learners, but on over 30,000 miles/year I keep thinking this could save me a fortune in the long run. Thanks :thumbsup:



It makes a huge difference in the winter, up until about a month ago it started and within seconds changed over to gas then when the colder weather came it stays on petrol a little longer and when it changes over it is a little bit unreliable (probably because it chages too soon - mine does it automatically) I have been told by garage to leave on petrol a little longer other wise it will stall - not too good for leqarners, but as soon as engine is warm no problems at all, the car does not drive and differently, power etc to the way it was before.:thumbsup:

garbage456;6955297

you was doing 22mpg, (my car does 17mpg).I think the best way to do … you was doing 22mpg, (my car does 17mpg).I think the best way to do comparisons is in money rather than mpg as the price of LPG is about half.so before £20 would of done you 80 miles, where now £20 will do 120 miles is that correct?My car does about £20 for about 65-70 miles(ouch)



Yes it can get confussing
ok before I used to fill up my tank with £54
it would go 240 miles

now I fill up with £28 and it goes £anything from 260 - 300 miles

so I gain on money £54 - less £28 = £26 every fill gained
and on miles
240 - say an average of 270 = 30 miles per fill

but you also have to put petrol in every now and then so I started with about £40 worth of petrol in July, it has now run out so 4 months X £40 = 10 per month for petrol (uses more in winter)

and when it does use the petrol it does more like 18 now as opposed to the 22

mds1256;6950904

doesnt always have to go in your boot, you can get a few different types … doesnt always have to go in your boot, you can get a few different types of tanks; you can get a split petrol/gas tank to go in place of the current petrol tank or some vehicles there is enough room to fit an extra tank under it



different types mine is in my boot

octobergirl;6984590

It makes a huge difference in the winter, up until about a month ago it … It makes a huge difference in the winter, up until about a month ago it started and within seconds changed over to gas then when the colder weather came it stays on petrol a little longer and when it changes over it is a little bit unreliable (probably because it chages too soon - mine does it automatically) I have been told by garage to leave on petrol a little longer other wise it will stall - not too good for leqarners, but as soon as engine is warm no problems at all, the car does not drive and differently, power etc to the way it was before.:thumbsup:



Thanks for this info - am def going to do some reading up on this as changing car in Jan so if new car is suitable it really does seem the way to go. :thumbsup:

octobergirl;6984630

different types mine is in my boot



Btw what was the garage you used as if they've been good for you it would seem a good idea to use them myself :), and how long did it take for the conversion ? Thanks :thumbsup:

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this is a nice post.I learned a lot from this post. I hope i will be back … this is a nice post.I learned a lot from this post. I hope i will be back in a jiffy:)Do remember me please!!LPG ConversionLPG Conversion LondonLPG Conversion SpecialistLPG Conversion CostLPG Conversion Cost



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Uve got 2 types of lpg tank. About consumption its always up to 10% more fuel.

for example:
Car using to do 100miles 10l of petrol. To do the same distance on lpg its take maximum 11l of gas. But like u know 1l of petrol cost u 1.3£... 1l of gas 0.59£.

If u spend 100£ on fuel on lpg it will be cost you £50.

About performance if someone use good parts and do proper job u don't feel it.

If u got any questions u can send me message.

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Uve got 2 types of lpg tank. About consumption its always up to 10% more … Uve got 2 types of lpg tank. About consumption its always up to 10% more fuel.for example:Car using to do 100miles 10l of petrol. To do the same distance on lpg its take maximum 11l of gas. But like u know 1l of petrol cost u 1.3£... 1l of gas 0.59£.If u spend 100£ on fuel on lpg it will be cost you £50.About performance if someone use good parts and do proper job u don't feel it. If u got any questions u can send me message.



Do you have an LPG-powered time machine so that you can go back the 3 years and 10 months to when the question was asked and answered? oO
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