LPG Plugs+Leads

[lrnut]

Going to give my update some love, the previous owner had the car serviced by a stealer and i noticed the pugs and leads are the same as the $90 tune up kits on ebay.

Now it spends most its time running on LPG probably 95% of the time actually.
I've had a few small back fires lately and its returning poor economy. Have had as good as 20l per100 but currently would be mid to high 20's.

So does anyone have any thoughts on suitable plugs and leads?
Currently leaning towards MAx300 leads by TopGun. Low resistance and good insulation.

Plugs is what i need help with most, standard, platinum, iridium? Bosch, NGK, Champion or maybe Autoflite or Brisk?

Not overly keen on Iridium based on price

TIA

[anthonygubbin]

Originally Posted by lrnut

Going to give my update some love, the previous owner had the car serviced by a stealer and i noticed the pugs and leads are the same as the $90 tune up kits on ebay.

Now it spends most its time running on LPG probably 95% of the time actually.
I've had a few small back fires lately and its returning poor economy. Have had as good as 20l per100 but currently would be mid to high 20's.

So does anyone have any thoughts on suitable plugs and leads?
Currently leaning towards MAx300 leads by TopGun. Low resistance and good insulation.

Plugs is what i need help with most, standard, platinum, iridium? Bosch, NGK, Champion or maybe Autoflite or Brisk?

Not overly keen on Iridium based on price

I been running Bosch platinum and they have been fine for the last 4 or so years. Have only gone through one new set in that time. Main thing with gas is they have a different gap setting to a car that runs on petrol. I don't know what that setting is as a mech recently did mine. If your getting that bad'a economy I would book it in for system overhaul. Around every 20k the converters need cleaning and the adjustments reset. Since overhauling mine I picked up about 20-25% increase in performance and with a heavyish right foot I get 20LPH up and down hills everyday. I have gotten as good a 17LPH on the highway from Sydney to Adelaide. I know that was accurate too as I only had enough money and fuel to not even expect to arrive home. I ran out of both 20km from home. I achieved that mileage by sitting on around 90kph and whenever possible not going over 2000 revs. I think the leads you have chosen will be fine. Just be sure to cover them in conduit to help them last even longer.

Regards A

[Shiggins]

Are champion RC12LYC with the .035 gap right for the 96 xj limited?

[Shiggins]

Anyone know?

[Windex]

Not sure of the gap but thats the plugs I have been using on my dual fuel Jeep for the past 4 years.

[lrnut]

Originally Posted by Shiggins

Are champion RC12LYC with the .035 gap right for the 96 xj limited?

Thats the plug Champion recommend for the XJ which has a .9mm gap.

There LPG plug for a XJ is RC9MCC and also have a .9mm gap but a slightly different heat range.

I'm about to put a set of RC9MCC plugs along with a set of TopGun Max300 leads on my XJ hoping it solves a few of my problems.

[bruggz351]

Originally Posted by Shiggins

Are champion RC12LYC with the .035 gap right for the 96 xj limited?

I use these plugs, with .9 gap. Not sure on the imperial equivelant.