T&T: High Sulfur Diesel and TBN

[Mike Maurice]

The TBN number mentioned below appears to be the item to keep an eye on 
in regards to finding an oil suited to high sulfur diesel.



Base reserve

When the motor is running, acid compounds from the burned fuel are mixed 
in the oil, and they must be neutralized in order to prevent corrosion 
of the metal parts. Therefore, motor oil contains additives for creating 
base reserve, the amount of which is expressed as the total base number 
(TBN).

By monitoring the change in the total base number it is possible to 
evaluate the condition of the motor oil with certain other tests.

Mike
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Capt. Mike Maurice
Beaverton Oregon(Near Portland)