157: High Alts and Low TBNs

157: High Alts and Low TBNs

Update: 2025-12-01
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The TBN is a popular test for automotive engine oil, and it's gaining traction in the aviation world, too. But is it a useful test for aircraft oil? Let's discuss.

Ready to start your oil analysis journey? ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Get your free test kit⁠⁠⁠⁠⁠.⁠

Have a question or shoutout? Leave a message for Blackstone Joe at 614-407-6169.

Host: Joe Adams

Producer: Arryn Dennard

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157: High Alts and Low TBNs

157: High Alts and Low TBNs

Blackstone Laboratories