So I have been searching the forum and I cant seem to find a thread specific to v6 spark plugs. Im at 60k and have heard that they should be replaced every 30k. What do you all suggest?

 

I used Autolite 3923's with a .35 Gap - I have a V6 3.7L Auto
I heard lots of good about them on here.

 

I just switched out to a set of E3's part# E3.48. They actually livened it up a bit and gave a bit more pep, I would highly recommend them.

 

Stay away from Bosch plugs. I put a new set in my v6 and a couple moths later I had bad misfiring under load. Went to a local honest mechanic after I couldn't figure the problem out and he knew exactly what it was in the first minute of the test drive. Bought some NGK plugs and haven't had that problem since. Been using Bosch for 16 years. Won't buy another one again.

 

What kind of ngks did you get. Ive alway been partial of them. I was considering the V powers. Ive heard they were supposed to be a little better than normal plugs and dont cost much more

 

The factory parts manual lists an NGK part number, which I use and has worked fine.

 

I bought the standard NGK plugs at Advanced Auto.

 

3923s. Love them. Got more pep out of the truck.

 

Kinda curious, has nobody else but me tried the E3 Diamondfire plugs?

 

How long have you had them in? any noticable mpg gain?