hi everyone.. i'm in need to swapping out my spark plugs. i just want to see what everyone is running. when is the recommended mileage to change them? thanks.

-alex

 

NGK Iridium

 

Just ordered Pulstar pulse plugs, if they're as good as the two tests I've read
I'll be a super fan....

 

NGK 1 step colder

 

I think the guys over at my350z.com pretty much proved through dyno testing that the Pulstars are a bit of farce and that they perform no better than an NGK plug. IMO, these are the new the grounding wires.

 

Aren't 1 step colder for F/I only? Or is that supposed to be a hint for him to get F/I?

 

I got one step colders accidentally for my N/A car. I noticed that the service manual lists one step colders and one step hotters as types of spark plugs when servicing them. I just installed them a few days ago.

 

Let us know how they are. One of the sponsers said don't get 1 step colder for N/A, just the regular:
https://g35driver.com/forums/engine-vendor/207284-ngk-iridium-spark-plugs-regular-1-step-colder-50-shipped.html

AGThing1227

 

Yea thats what I was thinking.

 

About when should we change our spark plugs.. ive never owned a car more than 2 years so i never had to change mine.

 

Its going to be hard for me to notice what difference the plugs make since I also installed my spacer at the same time. But so far no problems. At least not after I properly reconnected the harnesses to the correct plug =/

 

Manual says something like 110k miles. But some here suggest 60k.

 

110k? 60k? i heard 30k

 

NGK Iridiums