Spark Plug Gap!

[Fireplug]

Black and wet plugs is a rich mixture or incomplete combustion do to crap plugs. Oil will leave a crust of brown on the plug

[BlazerLT]

hope you are using standard oil to break it in.

[movin2stereo]

I'm using Castrol GTX.I took it to work today and she ran much better.Good advise here on the S-10 forum.What's up with the ads lately?Is nothing safe?

[atomicpulse]

Doesnt a rich mixture or incomplete combustion leave dry carbon deposits? Not wet?

[BlazerLT]

It can cause both.

[atomicpulse]

But gas evaporates and would disappear while oil would stay leaving the wet look?

[BlazerLT]

It won't evaporate that quickly in the combustion chamber.

[MarcyC]

Even tho these questions and comments are from 2004, they helped alot when I needed to know what the correct gap was for my 96 S-10 4.3l.....thanks guys!