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Thread: LPG - Spark Plug Advice ?

  1. #1
    Full Member Woody's Avatar
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    Vehicle : Vectra C 3.2 Gsi Auto (Zavoli LPG with Flashlube)

    Trim : Gsi with loads of "Extras"

    Engine : 3.2 Z32SE (LPG)

    Year : 2004

    Mileage : 131,000

    Default LPG - Spark Plug Advice ?

    Hi to the LPG fraternity

    Ok, I got my car ready converted just under a year ago. Now I am working on getting a full service done, including filters and spark plugs. After that, I'm going to get the car checked over by an LPG service agent (filter/safety).

    So, can I have some suggestions as to the "best" type, make of Spark Plugs I should be using ?

    I have a 3.2 preface (not that I would think should make much of a difference compared to facelifts) and an auto box.

    I can see "Iridium" plugs all over ebay, but am sure most of that and the price is "hype".

    So, can you help with some useful replacement spark plug advice fellas ?

    Cheers

    Woody

  2. #2
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    Default

    I lookedinto this to see if it would make any difference. Pretty much everyone with any real knowledge said keep using the ones recommended by the manufacturer.

    Ones which claim to offer better mpg etc are just not worth the money. Just my findings when asking the same as you.

    BTW I always used NGK ones in my 2.0 T

  3. #3
    Regular Member DTi Elite's Avatar
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    Vehicle : Vectra

    Trim : Elite

    Engine : 1.9 cdti 150

    Year : 2007

    Mileage : 145k

    Default

    when I had my LPG converted 2.0 vectra B I went to the dealer & they supplied standard plugs .

  4. #4
    Regular Member rushy's Avatar
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    Vehicle : SRi


    Engine : Z22SE (2.2 Petrol)

    Year : 2004

    Mileage : 137000

    Default

    I'd see what the LPG guy says tbh, its a specialist area and no dealer is going to know anything about it.

  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

    as many of the dealers will have supplied dual fuel cars they should have a pretty good idea , of then again maybe not

  6. #6
    Regular Member veclee's Avatar
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    Vehicle : vectra c

    Trim : club

    Engine : 1800

    Year : 05

    Mileage : 63000

    Default

    Lpg burns alot hotter then petrol standard plugs arnt really up for the job ngk do a plug that operates at a hotter temp than standard ones hence works better and a less likely chance of breaking down due to faulty burnt out plugs I've owned several 4 litre Lpg jeeps before and found saving a fiver by buying standard plugs don't work in the long run

  7. #7
    Regular Member paz_badboy4life's Avatar
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    Vehicle : Vectra SRi Dual Fuel NAV

    Trim : PreFace SRi

    Engine : 1.8 LPG

    Year : 53

    Default

    i got these for my 1.8 dual fuel last year:

    http://www.ebay.co.uk/itm/4x-NGK-LAS...item2573c4d358

    i've always used NGK and have alot of faith in them. These sparks worked better than ordinary spark plugs in my opinion.

  8. #8
    Full Member Woody's Avatar
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    Vehicle : Vectra C 3.2 Gsi Auto (Zavoli LPG with Flashlube)

    Trim : Gsi with loads of "Extras"

    Engine : 3.2 Z32SE (LPG)

    Year : 2004

    Mileage : 131,000

    Default

    Thanks fellas, your input is much appreciated

  9. #9
    Regular Member DanBristol's Avatar
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    Default

    i was at Avon Auto gas the other day .. the guy there told me to ring NGK and they will tell you the correct plug over the phone

  10. #10
    Full Member Woody's Avatar
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    Vehicle : Vectra C 3.2 Gsi Auto (Zavoli LPG with Flashlube)

    Trim : Gsi with loads of "Extras"

    Engine : 3.2 Z32SE (LPG)

    Year : 2004

    Mileage : 131,000

    Default

    I've been told that NGK only sell one plug specifically aimed at LPG, and that is their LPG1 model.

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