Good luck with the plugs Bigbri! Lots of videos out on how to make the process a little better. Let us know how it goes!
I didn't get to them yet....Hopefully this weekend. I want to get it done with, the suspense is KILLING me!! 102K on the original plugs....
Its not burnt carbon youre seeing. Itss then oil in the seafoam. Gives a dramatic effect people need to see.
The GM stuff is strong. As I posted earlier, I used it on my 82 Mustang 5.0, that had a bad detonation problem. After using a can poured slowly through carburetor, pinging all but went away. It was a strong smell while pouring it, but it worked. Probably burning off a lot of built up carbon. I changed the oil right after. Sent from my N9131 using Tapatalk
Let the range tick down to ~130 mi, pour half can into the tank (use a narrow funnel for capless 3rd gens), half can into the crankcase. Drive ~100 miles, let it cool a bit so you don't get burns, then change the oil Highly effective
This stuff is made for two-strokes. That's why it has been around so long. It's not going to do anything in a four-stroke and it adds alcohol to the fuel so if the vehicle sits for a while it'll absorb water.