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[cockneyboy100]

doing a service this weekend,  so many spark plugs, to choose from, what do you reccomend,  have heard ngk iridiums are good.

phill
  

[Marks DTM Calib]

Vx twin electrode ones.....4 electrode parts offer no advantage and can actual shield the flame front....

[cockneyboy100]

have you used these plugs before.

[Marks DTM Calib]

have you used these plugs before.

Which?

Vx - Yes, many times

Tried and fitted many more expensive types and had no improvement (not that you would expect any) and in some cases poorer running (i.e. Bosch Super 4's)

What you have to consider is that

1) The Omega engine are pretty efficent so dont have massive cylinder temps unlike say a Turbo car

2) The engine management setup really extends the plug life through tight control of timing and mixture

If you check a set of 40K plugs and measure the elctrode gap, it will be pretty much the same as the day it was fitted!

[Andy B]

.....
If you check a set of 40K plugs and measure the elctrode gap, it will be pretty much the same as the day it was fitted!

 ..... and how do you check the gap on multi electrode plugs?  :-?    

[cockneyboy100]

thats great, cheers for your help, vx it is then

phill

 

[mkaminski100]

Take GM plugs, or NGK. It is possible that BOSH is making GM spark plugs, but original BOSH just dont work as well as GM's or NGK.

[Richard A]

Had problems with GM plugs (misfire under load), fitted NKG Irdium plugs at 117k, speedo now at 142k ie covered 25k, checked 2 weeks ago and they still look like new, worth the money  
regards
richard a

[mahony]

i have used bosch super 4's with no problems (4 electrode) idle is actually smoother than the standard 2 electrodes i took out.

[Marks DTM Calib]

.....
If you check a set of 40K plugs and measure the elctrode gap, it will be pretty much the same as the day it was fitted!

 ..... and how do you check the gap on multi electrode plugs?  :-?    

You use gauge rods....

[Marks DTM Calib]

i have used bosch super 4's with no problems (4 electrode) idle is actually smoother than the standard 2 electrodes i took out.

Hows that a comparison....ow look, these new plugs work better than these old ones....  :-?

The 4 electrode ones are not better, they only extende the service interval by which time they have often worked loose any way......on a normaly aspirated car, fancy plugs only empty your wallet.....you want good quality standard plugs, not fancy snake oil based things

[MV6Man]

Had problems with GM plugs (misfire under load), fitted NKG Irdium plugs at 117k, speedo now at 142k ie covered 25k, checked 2 weeks ago and they still look like new, worth the money  
regards
richard a

What´s the part no for those iridiums?
They are coming on 3.0 but i assume that they will work in it too

[Richard A]

NGK Iridium IX Part no BKR6IX, 6418.

regards
richard a

[trebor]

I put in the LPG versions and what a difference!  Engine smoother, more powerful and economy now at 21 (up from 18) and I changed plugs halfway through a tankful of LPG - so hoping for even better on this new tankful.

BKR6EIX-LPG

[mkaminski100]

How much are these? Are they really worth it?