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Re: [ST] 15-50 Mobil one - TBN value



On Fri, 4 Jun 2004 09:04:16 -0700, Blake Sobiloff wrote:

> Also, MX4T uses a lot more magnesium than 
>the 15W-50 does as part of its acid neutralizing package.  Both oils 
>post different total base number (TBN) values, indicating that they use 
>different base stock (the stuff that makes up 80% of the volume of what 
>we call "oil").

I think you have made a mistake. 
TBN is related to the pH of the oil, not the base stock. Well there is a 
connection, but it is not what you wrote.

David W. Funk
'00 Triumph Sprint ST
Pleasanton, CA




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