Just found this article, and i thing it would be great, if we could have this number on our machines 
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LPG on a diesel
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Datatek
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Just found this article, and i thing it would be great, if we could have this number on our machines
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There are lots of ways of getting more power from a diesel without resorting to carrying gas.
As sure as hell it is not going to do much for your fuel economy and you will be buying two fuels.
The BMW lump suffers from cracked heads as it is, I've no doubt that the diesel/gas mix will burn hotter and thus increas the risk of head failure.
Chipped, mines supposed to be putting out 160bhp, whatever it is it's adequate. This week it's been doing a 160 kilometre round trip twice a day on give & take roads in foul weather, I've just brimmed the tank and it works out at just under 28mpg.
For sure I won't be wasting money playing with gas
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Just found this article, and i thing it would be great, if we could have this number on our machines
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Yes been elsewhere for a while. Unfortunatly illegal in this country i think.
you all so wrong....
been running lpg on my diesel (nissan 3.3l 6 pot turbo at 2bar) rangie for 3 years (i think)..
its like (when on gas and diesel) it has a v8 in her...also i can get 40mpg (combined) if at a steady 70mph...
also keeps the exhaust much cleaner (visibily)..
i reccomend...BUT do it properly,cos you can destroy the engine if too much gas used (detonationation, valve melting, piston cracking...use egt gauge!!!)
oh its on my v5..see tinley for info
been running lpg on my diesel (nissan 3.3l 6 pot turbo at 2bar) rangie for 3 years (i think)..
its like (when on gas and diesel) it has a v8 in her...also i can get 40mpg (combined) if at a steady 70mph...
also keeps the exhaust much cleaner (visibily)..
i reccomend...BUT do it properly,cos you can destroy the engine if too much gas used (detonationation, valve melting, piston cracking...use egt gauge!!!)
oh its on my v5..see tinley for info
Datatek
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Maybe so, but still think it is illegal i would check it out if i were you. Believe as far as i can recall that there was some government experiments with buses in London. But it was said that the law would have to be changed to allow it generally. It is not an approved motor fuel it would seem. You know this country, you can't fart without permission these days.
tufty
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sorry to dissapoint you wammers. but quite a few diesel trucks use compressed natural gas as road fuel combined with diesel . sainsburys use it in some of their city trucks. it is available at a truck stop local to me at j9 m1 on the a5 at markyate.
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Yes i am aware of that, dual fuel trucks are about. But i don't think it is approved for private vehicles. But i think i am right in saying they run off gas with a small amount of diesel injected to initiate the burn, as gas does not ignite by the compression ignition method. Think your talking injecting neat gas into the fuel, a totally different method. And as i say as far as i am aware illegal in this country or at least not approved as a motor fuel. Unless something has changed over the last couple of years and i have not heard about it. As the govenment are not in the habit of consulting me or for that matter anyone else, before they change the law, that may well be the case.
Mike Whiskey
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The article in the original link is about Liquid Petroleum Gas (LPG) or propane. The same stuff that many V8 lovers use. Nothing about compressed Natural Gas (CNG).
It's a similar kit to that found on petrol engines, but delivering a small amount of gas to augment the diesel, and thus make it burn more copletely.
No Idea why it would be illegal, given its the same sort of kit as currently in use on petrol cars, and the fuel has duty paid on it.
However, even those flogging the kits warn it's not a clear cut benefit.
For example Tinley Tech LPG Conversions - Diesel conversion caution suggests that it can be beneficial, but only if used to aid economy, and not as a power boot.
MW
It's a similar kit to that found on petrol engines, but delivering a small amount of gas to augment the diesel, and thus make it burn more copletely.
No Idea why it would be illegal, given its the same sort of kit as currently in use on petrol cars, and the fuel has duty paid on it.
However, even those flogging the kits warn it's not a clear cut benefit.
For example Tinley Tech LPG Conversions - Diesel conversion caution suggests that it can be beneficial, but only if used to aid economy, and not as a power boot.
MW
Can`t speak about other systems but I am aware only of Trucks using CNG (Compressed Natural Gas) but not LPG (Liquified Petroleum Gas), in their diesel engines.
As the Tinley site suggests if you use LPG at the same power output you should realise some savings, but if you use it as a power boost then any savings will be less, and as Datatek is saying getting 200?! horses from a 2.5 litre lump ain`t gonna do much for it`s life expectancy!
As an aside LPG vehicles are banned from many road tunnels and underground car-parks here in France. (never heard of anyone getting busted but be aware if visiting)
As the Tinley site suggests if you use LPG at the same power output you should realise some savings, but if you use it as a power boost then any savings will be less, and as Datatek is saying getting 200?! horses from a 2.5 litre lump ain`t gonna do much for it`s life expectancy!
As an aside LPG vehicles are banned from many road tunnels and underground car-parks here in France. (never heard of anyone getting busted but be aware if visiting)
robp38
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eurotunnel will not let your car on the train if is lpg converted even if its turned off,,
ironically just out side the eurotunnel terminal (calais) is a petrol station selling lpg, but when you get off the ferry the nearest one is, you guessed it outside the eurotunnel terminal !!!!!!
illegal..why would it be illegal...??
lpg from lpg /petrol station has duty paid as has the diesel...
and why you talking cng??not really viable unless you work at large truck place that has its own tanks as its real hard to get..also the tanks used on the trucks are very very large (read they even have them on the trailers as the unit cant carry enough),as the gas is still in gasous state,not liquid like lpg...so you couldnt carry enough on a rangie to even get to the filling station if there was one near you...
but lpg with diesel is very good..i really recomend...now putting it on the bmw lump? that i cant comment on as i dont have one..but i would if it were mine..
lpg from lpg /petrol station has duty paid as has the diesel...
and why you talking cng??not really viable unless you work at large truck place that has its own tanks as its real hard to get..also the tanks used on the trucks are very very large (read they even have them on the trailers as the unit cant carry enough),as the gas is still in gasous state,not liquid like lpg...so you couldnt carry enough on a rangie to even get to the filling station if there was one near you...
but lpg with diesel is very good..i really recomend...now putting it on the bmw lump? that i cant comment on as i dont have one..but i would if it were mine..
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Because as far as i know injecting neat liquid gas into diesel is NOT an approved motor fuel. You cannot just put expanded gas into diesel, gas is compressable diesel is not. The fuel pump needs an incompressable fuel or it cannot inject it. Putting expanded gas into the fuel system would be like having air in it. So the gas added has to be neat liquified gas. It is an utterly different system than the LPG/petrol system. The dual fuel trucks run of gas and diesel, their major fuel is gas, but cannot run off gas alone because gas is not compression ignitable. A small amount of diesel is injected after the gas is introduced into the cylinder and compressed, to ignite it. Where was your system fitted.
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Mike Whiskey
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Sorry Wammers, but I have no idea what you are talking about, and I don't think you have read the same article the rest of us have!
Injecting a gas into the diesel fuel line would be pretty silly, and is NOT what is being spoken about here.
The Articles are all about introducing a quantity of gas the to the air that enters the cylinder, either from the inlet tract, or via an injector, which then burns alongside the diesel charge in the cylinder.
The method of gas fuelling is identical to that used in petrol, but the quantity is smaller, and is used alongside the diesel, rather than replacing it.
at least that is the way I read the links.
MW
Injecting a gas into the diesel fuel line would be pretty silly, and is NOT what is being spoken about here.
The Articles are all about introducing a quantity of gas the to the air that enters the cylinder, either from the inlet tract, or via an injector, which then burns alongside the diesel charge in the cylinder.
The method of gas fuelling is identical to that used in petrol, but the quantity is smaller, and is used alongside the diesel, rather than replacing it.
at least that is the way I read the links.
MW
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Ok got the picture now. But last time i read about this it said something about it was a method used in the states that was being tried on some buses in London. It did say, that although experiments were being carried out it was not as yet approved for general use in this country. That is a while ago, maybe eighteen months ago things may have changed. Sounds a good way of blowing an engine not designed for it up to me.
Mike Whiskey
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Thinking about this a bit more, I'd say it is sort of equivalent to putting Nitrous on a Petrol car.
So yes it's an additional fuel that could make the engine more efficient on it's main fuel, or perform better, or melt down/blow up, depending on how it is set up.
MW
So yes it's an additional fuel that could make the engine more efficient on it's main fuel, or perform better, or melt down/blow up, depending on how it is set up.
MW
Datatek
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Yes indeed it could mean general use on PSVs. But just using it on a standard engine with standard fuel metering as a performance enhancer was not the idea. The gas was to be used as a substitute for part of the fuel requirement and not just added to produce more power. I would think the EGT would be far higher, burning off a lot of the harmful emissions associated with a cooler running diesel engine. That could cause considerable premature damage to an engine not designed to handle the extra heat. I will not be having this fitted to my DSE anytime soon. I think it would be far better for the government to put the price of diesel down to 50p a gallon and issue the pedestrians with smog masks.
Datatek
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Yes indeed it could mean general use on PSVs. But just using it on a standard engine with standard fuel metering as a performance enhancer was not the idea. The gas was to be used as a substitute for part of the fuel requirement and not just added to produce more power. I would think the EGT would be far higher, burning off a lot of the harmful emissions associated with a cooler running diesel engine. That could cause considerable premature damage to an engine not designed to handle the extra heat. I will not be having this fitted to my DSE anytime soon. I think it would be far better for the government to put the price of diesel down to 50p a gallon and issue the pedestrians with smog masks.
I agree
