just curious if any of you have heard of this and what your oppinion is
........is it safe?
........is it a scam?

http://www.dieselsecret.com/

Been discussed on several threads already.

here's just two

http://www.dieseltruckresource.com/dev/showthread.php?t=77312

http://www.dieseltruckresource.com/dev/showthread.php?t=77312