+1Additive used: Stanadyne Performance Formula
Demulsifier or Emulsifier: Demulsifier
Vehicle engine type: PD_BHW
Reasoning: OE Approved by Caterpillar, Ford, GM, John Deere, Navistar, VAG, Volvo etc.
http://www.stanadyne.com/docs/puba/99625 PF poster.pdf
I use 4 oz. of Performance Formual and 1 oz. of Lubricity Formula every tank.
I do not agree with the definition of an emulsifier offered by the original poster.
Emulsification: The process by which two disparate liquids are combined.
Call it tiny droplets if you will, but you do not want your diesel combined with water into a single principle.
Also regarding Stanadyne:
They have been in the business of design, development and manufacture of diesel injectors for many years.
Molecular structure of of Standadyne LF is almost exactly that of what is added to the tankers at the rail.