Hello Mr Singh
As promised, detailed answers for your questions.
'What are the benefits of converting a car to run on gas?'
The benefits of running your vehicle on LPG are financial, ecological and your engine components will be cleaner and run free from carbon deposits.
I will elaborate on these factors because I am sure that those answers will not suffice without hard evidence etc.
The financial benefit from converting your vehicle to LPG are instant. Every time you fill up your vehicle it costs 40-50% less than Petrol. Now I must say that LPG has a higher calorific value than Petrol, and that it burns as a gas and not a vapor. This means that you loose 2-10% less MPG whilst using LPG in comparison to Petrol. This therefore gives you a saving from 48% to 35% every time you fill up with LPG.
Sources for the prices are here:
The ecological advantages are probably not as important as the economical ones in this climate, but I will continue to explain them any way (Please skip if you do not want to be
swamped by science).
LPG burns more cleanly than Petrol, It also has the advantage of not having tetraethyllead or any additives which make it non-toxic and non corrosive. It also has a higher octane rating of 102-108 RON depending on which LPG you get. LPG still releases CO2 and is still a hydrocarbon. If you compare Petrol to LPG you will see the difference of 20% less CO2 levels whilst running on LPG.
Take a look at these sites if you want more information regarding the ecological benefits from running on LPG.
LPG is a cleaner burning fuel compared to Petrol or Diesel, which reduces the wear and tear of your engine components. We ourselves have Nissan maxima V6 courtesy cars that have done over 300,000miles on LPG. With regular servicing on both Petrol and LPG sides of any vehicle, you can certainly claim that you can extend the life of any vehicles by up to 50%. LPG vehicles also run smoother and quieter than running on either Petrol or Diesel.
'what are the problems encountered after the conversion?'
If you get your vehicle converted by a competent and qualified facility, NO problems should arise from having your conversion. The best advice that I could give to anyone that is thinking of getting an LPG conversion is this;
1) Check that the company is qualified to do the job, ask for certification and manufacturers training certificate.
2) Check with companies house, see how long the business has been trading.
3) Google search the company name with reviews or problems at the end.
4) What kind of warranty does the company offer. Settle for nothing less than a life time warranty for parts and labour.
6) Check the clauses within the warranty. If they say such things as dirty gas can invalidate your warranty stay clear.
7) Always stay clear of too good to be true offers, 99% of the time the offers that are too good to be true are laden with problems.
Here is an online tool for you to check LTD companies.
'how long will it take to recover the costs of fitting the conversion and to rectify any future problems that will occur due to the kit?'
It all depends on the miles that you drive per year, the MPG that your vehicle uses and the price that you get your LPG for.
Here is our savings calculator for you to do you own calculations on.
On average it takes between 8-12 months to regain the money spent on the conversion. This average is calculated on 10,000 miles per year. Every 10,000miles travelled is a saving of approx £1,000.
There should be NO problems from converting vehicles.
'why buy an car, usually one with a big thirsty engine for £1-2000, spend £1000+ getting it converted when you could have bought a small diesel car or even an old diesel and run it on old cooking oil and still have money left over?!'
Why indeed would you buy a large car and spend money on a conversion.
Buy a small car and do the same thing...
Diesels vehicles cost almost twice as much as Petrol vehicles to buy and to maintain.
Cooking oil is not cheap any more, and unless it is refined into Bio Diesel it clogs up your filters and injectors. There are conversion kits out there for Bio Diesel, they work by heating the vegetable oil up so that its viscosity does not cause problems with the Diesel injectors.
In this country we have a lot of Petrol Heads with large engines. Converting the larger vehicles is common in our workshops, but occasionally we do get the 995cc Micra popping in. 1 particular case especially stands out to me when a Micra owner was approached by the Petrol Heads asking why on earth would he want to convert a Micra, he simply smiled and stated that he does around 25,000 miles per year, and that he could get from Cardiff to London on £3.50 once he had the conversion.
'i have worked in the motor trade (for jaguar) for almost 10 years now and in that time iv seen about 15-20 jags ALL have had issues with either running issues when
running on gas, had problems when switching fuels, had problems with the EML coming on but no codes logged.'
This is a common problem with non trained or lack of experience LPG converters.
Jaguars have a high pressure fuel rail with no return pipe. It is a common school boy error, to fit a fuel emulator to emulate the pressure signal back to the ecu. This can burn the Petrol pump out because it is constantly pumping out petrol to the fuel rail, but it is not being used.
The best way to convert jaguars is to take your time. We are 1 day specialists but Jaguars take 3-4 days due to us having to take the fuel rail off, so that we can braise a new return fuel line back to the tank. When the LPG reducer temperature sensor heats up to 40c the LPG kicks in and a solenoid will open allowing the fuel to keep pumping around at the correct pressure.
'i recall vividly 2 jaguars one an old XJ6 where the fuel lines that were put in were as perished as the the car was rusty underneath and one a 54 reg XJR with starship miles what had come STRAIGHT from the fitter with the EML on but no codes logged, and it was running like a bag of spanners. the owner said that it went in running OK but the fitter said that it was running crap before they fit the conversion... surely if it was running poor it shouldn't have been converted. we had to turn the car away as we didn't want to get involve'
There is no excuse for bad house keeping. The moment a customer arrives at our workshop, we thoroughly check the vehicle for any defects. This might sound silly but we have refused to convert a vehicle because a customer was adamant that his vehicle was in 100% A1 Factory condition and we found that he drove all the way down to us without TAX.....
Our vehicle inspection sheets protect our selves as well as the customer. Silly things like cigarette lighters, radio codes and internal lights etc all get checked because of the mine field society that we live in. We advise customers on all defects found on their vehicle. If any engine defects are found and any codes show severe engine issues we will simply not convert the vehicle.
Beings though you state that you are in the motor industry, you should know that it is a criminal offence if you have worked on any vehicle, to let a vehicle drive out of your workshop or garage knowing that the vehicle is not road worthy.
'during our tea break, we calculated how long it would take to re-coupe the costs for a 2.0 V6 X-Type that had been converted to gas. with the conversion kit inc fitting would have been about £1500-2000, the cost of both fuels, loss of boot and spare wheel, the inconvenience it would cause going to get the the running issues sorted, worked out that you would have to do 200,000 miles ON TOP of what the car already had to make economical sence'
Must have been some funny tea involved here (jokingly). You must mean the V6 2.5L 4x4 or the 3L V6 X-Type.
If you have your vehicle converted over to LPG by professionals you will find that no issues will arise from having a conversion.
The loss of boot space is something to think about, we can either fit cylinders inside the boot, toroidal tanks in the spare wheel well up right toroidal tanks that limit the space taken and under-slung tanks which once again fit within the manufactured area provided for the spare wheel. Although it is food for thought, all of our 8,000 customer feel that it is a sacrifice worth living with.
Once again I thank you for your questions.
Profess LPG LTD.