Essential to the combustion engine, and commonly debated. What brand of spark plug do you use?

Most claim as good if not better performance from good old copper plugs. What are you finding>

You might also want to include the gap of your plugs as well since many ask what to gap them at.

 

I went with the stock replacement Champions recommended from several people here. Ever since, it feels like the truck LOST power and gas mileage. Im searching for a new set.

So, I installed Champions, but not very happy with them.

 

NGK 5306 V-Power

I did not notice any difference in milage or performance, which is good I guess. Work fine so far I have about 10,000 on them. Probably going to try the regular NGK's next time.

 

I run OEM copper Champions. Replaced every 30K just because.

 

Just installed Champion double platinum plugs. Made a little difference i can tell. Little on mpg's also.

 

I just ordered 16 Autolite XP Iridium plugs #XP5263 for my new (to me) '03 Ram 1500 Hemi Quad Long Bed 2WD from Advance Auto Parts. They recommend .045 gap. The XPs were a bit pricey @ $6.59 each, but with the $2.00 Autolite rebate per plug (max $32) and free shipping...... I don't know about performance or mileage improvements, but looking at how hard it is (for a 53 year old with back issues) to change some of the Hemi plugs, I think it will be worth the extra money to extend the change interval. I've used Ngk Iridium plugs for several years in my Triumph Bonneville America bike and the wear on the electrode and ground wire is almost negligible. I'm banking that the Autolite XPs will do the same. I will post later about the change and results. Also, I'm a believer in using anti-seize on all plugs, especially those going in aluminum heads. Oh, by the way, this is a great forum!!!

 

Well, a couple days ago I changed my plugs for the first time since I bought the truck. I've put on 30,000 miles since I bought it and figured it was probably time. The seller told me when he had the truck he kept up with all the fluid changes in the truck according to the service manual and that was all the maintainence he had ever done on the truck. I shot him an email a few weeks ago asking if he had ever changed the spark plugs. He said no. I almost died lol. I bought 16 and prepared for battle. After taking out the first plug I thought to myself, hey this plug doesnt look terribly bad. After taking out all 16, they all looked identical. The gap was slightly bigger than the .045 but not all effed up like I thought they would. Not bad for $1.50 a plug. Think I can get another 130,000 miles out of them? LOL

Never ever ran anything below 89 octane in the tank and all syn fluids. The last 20,000 miles have been with 91 octane and the 91 Preformance tune of the superchips. 16 Champion copper plus, the stock number is 570. The plug number is RE14MCC4, and the gap is .045. Thats what I replaced these same ones with.

 

Just replaced all my plugs for the first time for my trucks 30k mile check-up. I used the champion copper cores for two reasons:

1. What was used originally from the factory.
2. Have been told numerous times on the forum and else-where that these hemi's run best on plain old copper-core's.

Took me about 2 hours to finish the tedious 16-plug job.
Used anti-seize and die-electric grease on the plugs.

Runs great and no problems what-so-ever!

Please Please don't let the dealer suck you in on this job. It's not too bad!
I wonder how much they would charge as well...

Whole job cost me about $30.00

-16 plugs
-2 packets of anti-seiz
-2 packets of plug grease.

 

Has anyone on the board use the E3 plugs for there 4.7? Really dont want to change the plugs again at 60k, ive never owned a truck where you had to change plugs every 30k.

 

That's mostly for the Hemi's since they like the copper plugs so much. You could get some iridium or platinum plugs since they're supposed to last longer and just pull one or two and check the gap at 30k.