I just bought a set of OEM NGK Laser Platinums (DCPR8EKP ). Does anyone know what the gap is supposed to be? The Owner's Manual does not list it.

I did a little searching and saw that Kevlar referred to them as non-adjustable. Is the gap supposed to be correct out of the box? Even if it is, I'd feel more comfortable if I could check them to make sure they all have the correct gap.

If memory serves me correctly, the gap for the OEM plug is non-adjustable because of the way the spark plug is setup. The gap doesn't change.

Denso sells a single electrode spark plug which the recommend you gap at 0.0032

So....I should be okay with the way they are now? Out of the box?

http://members.roadfly.com/kmurph/NGK.jpg

They are dual electrode and do look more difficult to set the gap but I would think there has to be a spec.

Did you install the Densos? If so, how do you like them....are they Iridium?

I don't use the Densos... I use the factory NGK plugs. The NGK plugs last longer than the Densos do from my understanding.

I would use the spark plugs how they came out of the box, I wouldn't try adjusting the gap.

I'm on my third set of spark plug. I changed them myself at 30k miles and then I got a new set coutesy of BMW for Inspection II ... both used right out of the box.

Thanks for the info...I'm at 47K miles right now and Inspection II is due; I'm going to do a lot of the work myself...

I'm not sure where you bought your NGKs before but I found them pretty cheap are http://www.alloemautoparts.com. They were only $12.99 each and the shipping was free...and quick. The dealers want over $20.00 each.

Dealer actually wanted $25/each for them...

I actually went and bought a set from the dealer without checking the price... figured, how much could a spark plug cost :confused:. Well, the total came out to like $170. I was questioning the cashier... are you sure you got my order/name right?

At 30k ... my plugs were average... not great, but not bad. So I changed them.

The factory spark plugs are non adjustable. They come gapped the way it should already.