Ok, I've read a lot about choices for spark plugs. I'm thinking of using the NGK platinum. What's your favorite plug for a 1998 Grand Caravan?

 

Either champion or ngk.

 

I just use whatever they came with, haven't had many issues with factory plugs.

 

I like NGK V-power plugs myself.

 

ive been using various types of ngk's in everything i own for the past 5 years or so. no problems so far... and they're reasonably priced. the ones in my 96 van (3.0) are just the regular cheap ones.

 

what do you think about the new E3 diamond fire plugs.. i had good results in my mustang..+3mpg's gain would they hurt my 02 3.8 caravan?

 

I have used the champion 646 ap which are the single platinum plugs, and the ones recommended. I think that they suck because they are supposed to last 50K miles and they only last 15K or less. They cup out the electrode since that part is not platinum and act like extremely worn plugs.