Hello everyone, I was just wondering what spark plugs you use in your 3.9L V6 dakota. I have read about several different brands that can be used, but wanted your opinion on what has worked best for you. I've been using stock champions 436 (RC12LC4) and was curious what other brands might provide better performance.

 

Autolite 3923 plain copper core.

 

Might as well close the thread, that's the only unique answer you're going to get.

 

Thanks, I've seen that plug type in other forums in the past. I've checked the websites of auto part stores in my area and they only carry the Autolite 5224.

 

Walmart carries them 2 in a pack.

 

Thank You, I will try getting them there and see if they make a difference.

 

iIve used the Bosch platinum plugs in my 95 Dakota with great success and reliability. also in my area they run about 2 bucks a plug