Difference between pH and TBN

[BearZDefect]

Originally Posted By: Voltmaster
... pH increases making the oil solution more acidic.

Lower pH is more acidic.
As Shannow wrote:

Originally Posted By: Shannow
...

A few drops of vinegar, in clean water, and the pH dropped quickly, and a lot. ...

 

[Ducked]

Originally Posted By: alexeft
I already bought a pH meter, this one http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=190863408370

It already contains plenty of calibrating solutions, so, no problem there. It also automatically compensates for temperature differences, which would have to be done by hand in the case of strips.

I found these strips http://www.amazon.com/dp/B0007RSD0A
They also have an accuracy of +- 0.2, same as the pH meter above. Not much of an issue there really.


Might be an idea to compare your pH results with one of those Lubricheck gizmo's, if you fancy buying another gadget.