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Thread: Should I do an LPG Conversion

  1. #1
    Full Member coldo's Avatar
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    Default Should I do an LPG Conversion

    I have just bought a 2004 1.8 SRI Vectra C with 61k on the clock.

    It seems to be a good runner which is the main thing but being petrol the best MPG we will get out of it will be 40mpg with carefull driving…

    Now as the engine is still very fresh and the car will be doing around 15k miles a year I have been giving seriousl though to switching to LPG.

    I know the benefits of doing this in terms of fuel savings etc and know the kit will pay for its self in 12 months easily with the millage we do. I also have a fairly local dealer to me who is fully registered for fitting and user the BCR kit which seems to be highly recommended. So that’s all fine…

    My question really centres around the car and wither it is worth doing the conversion…

    Basically the car is just over 8 years old and was only £2.5k for me to buy… Is it really worth considering fitting a £1000 LPG kit to a car of this age?

    What’s your thoughts and experiences (if relevant) folks..?

  2. #2
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    Surely if you are keeping the car long enough to benefit from the savings.

    I know historically after market LPG kits can lower the resale value of the car , however not sure that is the case with ever rising pump prices.

    You may want to read up on the different types of LPG systems.

  3. #3
    Full Member merikiito's Avatar
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    Vehicle : Insignia CDTi SRi NAV 160

    Trim : SRi

    Engine : A20DTH

    Year : 2009

    Mileage : 88000

    Default

    If you intend to keep the car and are doing the mileage to warrant it then yes. You should get another 40-50k out of the engine, only problem is the 1.8 is under powered for the Vectra C and LPG will be 10% or so less powerful.
    Lois Griffin: Peter! You're bribing your daughter with a car?
    Peter Griffin: Ah, c'mon, Lois, isn't 'bribe' just another word for 'love'?

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    Regular Member John Bishop's Avatar
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    You wont get much of a lpg instal for a grand. Used to have a one on an omega and loved it. Was a prinz multi system and great. No loss in power either.

  5. #5
    Regular Member DTi Elite's Avatar
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    Vehicle : Vectra

    Trim : Elite

    Engine : 1.9 cdti 150

    Year : 2007

    Mileage : 145k

    Default

    I had a longas system fitted to my vectra B , multipoint system with a 60 litre tank & it ran fine , no loss of power & if anything it had a slight increase in torque .
    the main problem I find is actually getting hold of the stuff .
    there are a few refuellers in this area & most are only open when I am at work .
    so the need to travel a bit further , 1 filling station on the motorway services ( 7 or 8 miles away ) is charging 82p litre & the pump system is weak so never get more than 2/3rds full .
    another 1 is 11 miles away ( opposite direction ) is about 84p litre .
    then there is another one 16 miles away that is 69.9 p litre , so thats a 32 mile round trip to get filled up without having eyes taken out ( 10% of range gone just getting the stuff )
    not to mention when in a strange area & having not much idea where to get any .
    one good point is that I always know roughly how much i will need or when it will run out as it seems to do 28mpg on gas regardless if its round town , motorway , driving like miss daisy or flat out everywhere .
    so for the sake of the inconvenience to me I have now bought a diesel like I should have done in the first place .
    all well & good having LPG fitted IF there is a decent fuel supply network in your local area & you don't go far enough to run out , after that it becomes an inconvenience .

  6. #6
    Full Member coldo's Avatar
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    Good point on the LPG dispencers. I have three all within 8 miles of my home and more near my work so that part seems to be covered.

    From what I can understand the kits used now have come on quite a bit compaired to the original ones and are much more reliabe etc.

    I am concerend about fitting it to the 1.8 engine but this is also the engine that Vauxhall chose to offer their conversion on so it is a proven test bed.

    As highlighte the concern I have is the ammount of time I still have in the engine... My other vectra is also the 1.8 and had done 93k now and is as tight as a drum so I gues the options are there.

  7. #7
    Regular Member DTi Elite's Avatar
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    Vehicle : Vectra

    Trim : Elite

    Engine : 1.9 cdti 150

    Year : 2007

    Mileage : 145k

    Default

    as long as you keep the engine serviced there is no reason why it will not last a lot more miles yet , my B is on 121k & is fine , replaced head gasket at 115k .
    has been running on LPG since 80k

  8. #8
    Regular Member rich r's Avatar
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    Don't forget that the 1.8 Vectra was available with LPG from Vauxhall. Mine is a 2004 1.8 Elegance Dual Fuel - currently approaching 101000 miles and probably has done less than 4000 miles in total on petrol, the rest on LPG. The Z18XE engine was designed with LPG in mind, and you really can't tell any difference in performance between petrol and LPG. The kit Vauxhall used even uses the same fuel gauge, so the BC works properly too (although the range calculation can be a bit out as the fuel level in the tank doesn't go down in a linear way like a pure liquid like petrol).

    In terms of the economics of it - if you do 10,000 miles a year, you'll have paid for it after one year, and after than you'll be making big savings. LPG is currently 65p a litre here (Asda, York), whereas petrol is double that. There is no extra servicing requirement other than the fuel filter every 50,000 miles or so (and they're cheap). If you do less than 10,000 miles a year, then it's probably not worth it. Sell the car and buy one that's already equipped with LPG.

  9. #9
    Full Member coldo's Avatar
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    ahhhhh... cool, cool...

    Thanks for the feedback all.

    I thought the 1.8 was a good engine for it and as we are likleyt o keep this one for a while then the conversion seems to be making sence.

    Obviously I will used an approved regestered fitter etc if I go ahead witht he conversion. If this is the case do you get a discount from the DVL on your road tax?

    Does it make much difference to your insurance premium?

  10. #10
    Regular Member m8internet's Avatar
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    Quote Originally Posted by mon View Post
    I know historically after market LPG kits can lower the resale value of the car
    The car is already 8 years old, depreciation would be an issue on a car under 3 years old
    This seems a fair investment, if the car will be retained for at least 18 months
    However if the car was any older it wouldn't be worth it, repair costs from wear and tear will start to bite

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