I looked everywhere and couldn't really find anything besides the expensive Mopar ones. I have a p0300. It turned on twice and **** off both times. I've had the truck about 8 months. I'm gonna change the plugs and give her a tuneup. So my question is: what are the best spark plugs to run in these 3rd Gen trucks??? I have a 2003 5.7L hemi.
. Thanks!

 

You want to stick with Copper plugs. Any others will upset your truck.

 

OEM or equivalent

 

Right, copper plugs are only way to go. I'm getting 50K out of the Champion 570. NGK 5306 plugs work well also.
You may want to have your codes scanned at an auto parts store, or get a good scanner for yourself. You are seeing 0300 code, but usually the computer knows which cylinder has the misfire. You'll want to pay close attention to plug condition from misfiring cylinders.

 

Spre14mcc4

 

I like the champion copper plugs.

 

ONE of the times I scanned it with an actual scanner it told me it was cylinder 4. The last time I did it I just used the key trick to find out what the code was. I was a diesel mechanic for 7years. So I'm pretty decent with a wrench. Although I found the real money to be in masonry 😎

I appreciate all the info guys. This is my 4th dodge truck. Although the rest were 2nd gen. My first 3rd Gen. I love how much room is in the cab