Rusty Spark Plugs?

So... Should I be concerned?

 

Looks like normal "brown" and not rust to me. But what do I know, I'm colorblind.

 

They were very rough feeling as I loosen them. Like that feeling of grinding/rough turning. I used anti sieze on the new ones, but I wanted to make sure this wasn't signs of something bad.

Also... Should there be a deal between the valve cover and the spark tube?

 

looks worn but normal...

 

Small possibility that some water got into them, happens sometimes when engines are washed with pressure washers and what not. I wouldn’t worry about it, just replace them and you’re good to go!

 

Okay phew! I just got this 4runner a few weeks ago and I'm still babying her...haha

 

That’s exactly the color you want. If they are white you have a problem cuz it means your motor is running lean which will make it run hot and blow gaskets/seals.
Black would be either running rich/cold or oil fouling from excessive blow by

 

How many miles? I had a 2011, I loved it.

 

123k, she is a 2000 4x4 SR5.