MADXF

I've taken the petrol system out of my car and am obvioulsy now running dedicated LPG.

Now that I've done this, I'm wondering what spark plug I should be using that is more suited to LPG or is there no point changing?

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MADNC_8

i used to run NGK-R plugs (the V-Tip ones), and magnecor 9mm spiral core leads, in my LPG XF

T_Terror

I believe it helps to have spark plugs gapped .1mm less than standard.
This is becasue the gas dosnt conduct electricity/spark as well as petrol.
Not sure about the heat range though.

creature3

I use the Jim Mock plugs. I spoke to them, and they reckon they are fine. Also check out the relevant sparkplug web sites, NGK and Bosch etc,. and you can get numbers off them, and some good advice.