Spark Plugs: NGK BKR6EQUP (Platinum) or NKR6EIX (Iridium)

[123BillyB]

I've had my 3.0i 55 plate (M54 engine) for just under a year now and recently had the oil service done.

I was just looking through the previous receipts, I noticed on the full service receipt that was carried out at an Indy by the previous owner (Jan 2012), it only listed 4 spark plugs. That got me thinking was that a typo or were they not even changed back then???

Next service isn't due for sometime so have decided to change them myself and I am sticking with NKG but needed some advice on the following.

The OEM plugs are the 4 prong platinum type (BKR6EQUP) but when you go to the NKG website they list the upgrade as the single prong Iridium type (BKR6EIX - 11). I know the 4 prongs over single prong do not make a damm bit of difference as only one prong delivers the actual spark but from what I have read, Iridium delivers a better spark over Platinum and is more durable. Having looked at a few online stockist, the Iridium set of 6 doesn't even cost that much more.

I wanted to know if anyone has fitted the NKG Iridium plugs over NKG Platinum plugs and when their views were.

Thanks,

Billy

 

[Z4M-2006]

Iridium do give a stronger spark,but in reality you wont feel any benefit or performance gain from fitting them..


I used to have a Shyline running a fair amount of boost,and with platinum plugs in the intake into the cylinder would effectively snuff out the spark,Irdiums were the only option and the car worked fine after that.

 

[sbtwister]

I've used the Iridiums for a couple of years now, and have been very happy with them. So, why not?

 

[123BillyB]

Thanks guys.

Just wanted to confirm the Iridium plugs didn't have any negative affects and as a set of 6 only cost a fiver more than the Platinum's, might as well fit them.

Cheers,

Billy