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#21 ·
jonsebastian said:
The government said it was due to the additives, so everyone rushed out and got diesel cars. Sure enough the price of diesel suddenly started rising much faster than LRP. Its all a con
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Or it's called supply and demand. Surprisingly if more people are buying stuff, there's more demand for it, therefore a higher price. It's got nothing to do with the government, apart from their stupid taxes on the stuff. Gotta love VAT being charged on fuel duty. How can a tax on a tax be Value Added?
 
#22 · (Edited by Moderator)
#23 ·
At the end of the day, if your just driving down the motorway your probably using < 100hp. If you need all the POWER!!! then simply switch back to petrol. At lot of people don't like LPG but it works, and its 40% cheaper to run your car than petrol.
 
#26 ·
Rowe said:
For a decent piece of kit you're looking at 1800 quid.
That'd be capable of handling over 300bhp
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And then you've got to factor in the cost of an annual service (last time I looked into it about £100), possible increase in insurance cost and being banned from using the Eurotunnel...
After all that, it worked out at about 15k miles/year for several years to break even on the cost.
 
Discussion starter · #28 ·
MojoTheHelperMonkey said:
Had my car done around 2 years ago, done 40,000 miles on gas. I've had no problems with the conversion, it does around 42-44 mpg equivalent. Thats running on an MP260.
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I take it this is an st you have had it done on?? Did you have the flash lube fitted? I was quoted 1045pound for the aeb Italian gold kit. And the flash lube as an extra for 100 pound, with me doing a lot of miles on the motorway and not wanted to px for next to nothing for a diesel
 
#29 · (Edited by Moderator)
i have a ST with lpg..... is a Vialle LPG.... i also have a dreamscience mod X stage, about 340bhp
the car run with full power if i use the petrol....
with lpg i can't use the full power because the vialle is a liquid lpg system and the pump in the lpg tank is for maximun 280bhp engine :)
now the car had 120.000 km (90.000 with lpg) and i haven't any problem ;-)
sorry for my bad english
 
#30 ·
Just got my st mk2 converted. Went all out and got the best system on the market at this time. Prins VSI with aftermarket injectors from japan. Noticed a difference when I floor it from stand still. The boost doesn't throw you back as much like it does when running on Vpower Nitro + but other than SLIGHT lack of boost it's fine (when you REALLY need it just hit the BEAST MODE button lol instantly switches to petrol)

At the moment I'm getting £20 of Vpower nitro + at £1.38p/l = 50 miles (semi Eco driving) and on LPG at 75p a liter = aprox 100 miles (rough driving/almost no Eco).

Paid £1800 for the system and would recommend Alternative fuel company on river road in east London.
If your gonna do it, do it properly and get the BEST system, otherwise leave it.
 
#31 ·
Almighty_guru said:
Just got my st mk2 converted. Went all out and got the best system on the market at this time. Prins VSI with aftermarket injectors from japan. Noticed a difference when I floor it from stand still. The boost doesn't throw you back as much like it does when running on Vpower Nitro + but other than SLIGHT lack of boost it's fine (when you REALLY need it just hit the BEAST MODE button lol instantly switches to petrol)

At the moment I'm getting £20 of Vpower nitro + at £1.38p/l = 50 miles (semi Eco driving) and on LPG at 75p a liter = aprox 100 miles (rough driving/almost no Eco).

Paid £1800 for the system and would recommend Alternative fuel company on river road in east London.
If your gonna do it, do it properly and get the BEST system, otherwise leave it.
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Sounds like a good option. So if you don't mind me asking how many miles do you plan to do per year and how many years are you keeping the car for?
 
#32 ·
MrRimmer said:
Sounds like a good option. So if you don't mind me asking how many miles do you plan to do per year and how many years are you keeping the car for?
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Your gonna do the maths aren't you
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Here's my dodgy maths.

So for £20 you get an extra 50 miles so that's a so thats a £20 saving straightaway every 100 miles but you'd need to do only 9000 miles before it's paid for itself.

If you used LPG vs petrol you would get 9000 miles for what 4500miles would cost so in theory it would pay for itsself within 9 months of average driving.

But don't you loose the power and grunt you'd get from petrol and doesn't it damage highly tuned engines and what's the equivalent RON of LPG ?
 
#33 ·
Ron value is lower but the calorific content is higher as far as I'm aware.

LPG used to be renowned for poor performance and eating valve seats.
Stuff has moved on, and a lot of the decent systems aren't a great deal off the performance of petrol.

My dad's been fitting LPG kits for over 20 years, although admittedly he has removed more kits than installed (thanks to the planks that think they can diy fit these kits)

My mums 400bhp a type r has been running a dogs danglies landi system for the last 6 years and the performance losses are not really noticeable.
I wonder how much she's saved in fuel money over the years....
 
#34 · (Edited by Moderator)
Rowe said:
Ron value is lower but the calorific content is higher as far as I'm aware.

LPG used to be renowned for poor performance and eating valve seats.
Stuff has moved on, and a lot of the decent systems aren't a great deal off the performance of petrol.

My dad's been fitting LPG kits for over 20 years, although admittedly he has removed more kits than installed (thanks to the planks that think they can diy fit these kits)

My mums 400bhp a type r has been running a dogs danglies landi system for the last 6 years and the performance losses are not really noticeable.
I wonder how much she's saved in fuel money over the years....
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Well for 4500 miles - that's £1800 so you get 9000 miles that's nearly a years worth of driving so I make it roughly £2200 saving a year !

I dunno if my maths is off it's not my strongest point
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#35 ·
It's roughly a 9000 pound saving on my mums car based on the difference between petrol and LPG being 40%
She does around 200-250 miles a week and averages 22mpg on LPG.
 
#36 ·
Rowe said:
It's roughly a 9000 pound saving on my mums car based on the difference between petrol and LPG being 40%
She does around 200-250 miles a week and averages 22mpg on LPG.
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If mine was a daily driver I'd probably go for it ! Then I could get a new turbo, manifold & plenum at the end of the year
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Shame they don't do something like this for diesels I'm spending £120 every 10 days in my work van !!!
 
#37 ·
They do LPG for diesels.

But instead of it just running on LPG it runs on both.
This doubles your range, but the savings aren't as great as you still have to use diesel.

It's also VERY expensive.
 
#38 ·
Rowe said:
They do LPG for diesels.

But instead of it just running on LPG it runs on both.
This doubles your range, but the savings aren't as great as you still have to use diesel.

It's also VERY expensive.
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Really wow that's cool sort me out
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I'd get it done on the van straight away it's tax deductible and vat claimable so worth it IMO
 
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