I am going to use some Seafoam to clean out the EGR (Exhaust Gas
Recirculation) valve, my 1983 full size Dodge van.
Yesterday, I read on the web that Seafoam stuff will fog up the whole
neighborhood.

I Likes that!

Drill and tap (thread) a small hole in your vehicles exhaust
manifold.Rig a little tank with a valve you can controll from inside of
your vehicle.Put some of your old motor oil in the tank.When people are
following too close behind you, work that valve on and off!
cuhulin