Originally Posted by zu!

This is one of the things that surprised me when I first joined this forum...there seemed to be little or no concern about ULSD and the effects it has on the vehicle! Go to any VW diesel site though, and comments fly thick and fast about these additives! In fact, most everyone swears by Stanadyne, which (according to some pundits) is actually required on VW diesels!

Having come from a VW that leaked like the proverbial cow on a flat rock, I was a little concerned. However, so far, I have not noticed any leaks on my IP. There is some new wetness developing on the top of my larger fuel filter (which was always dry before) but its not leaking in that sense.

Generally, I sense that ULSD hasn't really done much harm to the Merc crowd. It has decimated the VW crowd and a visit to any of the older VW diesel forums will show you how much angst those 4 letters have caused.

My question is: Why?