Doing plug change today in 3.0l vulcan. Wondering the best plugs to run. My bud says he would do just straight up copper oem replacement............any opions greatly appreciated.

thnx iridium? platinum? advantages?

 

Welcome to the site... try our search function ITS SUPER!... look under tech articles about maintenance

 

Just called dealership......parts guy said copper were the stock plugs.....service guy said platinum..
wtf?

 

copper

 

service guy said scheduled maintenance for spark plug change was 100000k...................for copper?
is that possible?
Im not doubting u , just trying to wrap my head around it.

 

every parts store in town said platinum.....r u sure u r not misinformed

 

i just put in autolite platinums in my truck last weekend

 

I would like a correct name of the plug since i need a new set of wires and plugs...misfire is pretty bad.

Any real input instead of copper platinum copper platinum would make this thread more beneficial to others

 

I use to run nothing but autolite double platinum in my truck they worked very well but now i run nothing but NGK-R's they preform awesome.

 

3 methods to do this:

method 1 (most number of steps)
step1, remove stock plug, step 2, read name on side

method 2
use search function at the top of this page

method 3
Let me google that for you

 

I tried the E3's, seems to start quicker and a smoother idle with A/C on. I had a problem with the #1 cylinder though, the seat on the E3 is higher on the body then oem plug so it sits lower in the plug valley. I had to trim down the boot a bit on the plug wire.