Sodium content in oil ?

[Calvin]

As I look through the VOA I see many that have varing amounts of Sodium content.I have read that it is sometimes used as an additive but I have not found any reference as to what function the sodium performs in the oil.Anyone happen to know ?

Thank you.

 

[MolaKule]

Sometimes the additive boron, an AW and detergent, comes in the form of either Potassium Borate or Sodium Borate, so this is where you may see it.

Also, Sodium is a constiutent of anti-freeze, and it sometimes difficult to determine where it comes from unless there is glycol found in the UOA, and then you know it's definately from anti-freeze.

 

[Calvin]

Thank You MolaKule.I do appreciate the help.