Just 2 quick question; I've searched but I really do not see anything like this or i dont know what key words to use; You know the color of shiny metal when you heat it up really hot it kinda leaves behind that bluish discolored tint?

What does it mean when a small edge on a plug; this is not the tip; but the outer flat part that surrounds the core has this?

What plugs should i use to be in the correct heat range to deliver the best performance and burn when using 180 T-Stat? Engine Temp varies 180~195 depending on weather conditions and the fact i have a fan clutch.

Running the Copper Plus Champions I forget the number and 180 T-Stat. But its the next step up from the resistor type that was originally called for on the truck. 1997 5.2L 4x4

 

thunder told me to use the autolite 3923 i just bought them they are 1.50 a piece on summit racing came out to 12.00 bucks plus 4 bucks for shipping an handling.

as for the first question i have no idea

 

I though bluing was cause from too much heat. As far as plugs I run 3923's also. Magnums seem to like them. I think I got all mine for my truck for 15.00 at autozone.

 

Well Mine do it and I'm wondering what its caused from and any thing this should be a warning of..

 

What kind of plugs are they. Like oem or what?

 

Actually come to think about it they might be platinum; I need to check.. they were in a blue box. But I thought i just put on a copper plus.. Let you know.

 

Can you post up a pic of them so we can see. Im still really not sure. You could call a dealer or someone that really knows vehicles well to see if they would know.

 

yeah we need to see a picture

 

Sorry still working on getting it; took a 500Mil. trip today.. Averaged about 16.9 MPG on a hilly *** trip.. get up and go sucks though with this new Cat on.. ERG..

I'll try and get pics by this weekend.

 

what kinda cat did you get.