Quote Originally Posted by aimre View Post
The only evidence we really have, is through trial. Now people on calaisturbo have been dosing for years, and many say that they havent rebuilt their turbos in years.
True, and while it does give an ok indication, that a turbo can deal ok with slight surge conditions, its not enough to say with a bov on X engine, the turbo lasted 180,000kms before needing a rebuild, and on the same engine, in simular driving conditions, without a bov the turbo only lasted 155,000kms.