Didn't see this posted in forum so I thought I'd post it. This was the first time posting anything about sI-1 for me, man this stuff worked incredible on a 250k mile engine and one week with one bottle. I can only imagine how clean they will be with regular use. Um yeah redline has something special, no suprise there most of their stuff is?
[video:youtube]https://youtu.be/SkiQmG-cQXM?t=210[/video]