Hi Guys,
Is this realy true you can use either red or blue on a 200tdi,
what about the difference between OAT's AND IAT's, (Organic or Inorganic Acid Tech)
I know some red have OAT and some dont, and the same with Green or Blue, but is it safe to use any?
And yes I have searched which is how I came to this thread.
Cheers
Steve