# Service bulletin TSB150171\-092420

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10181132
- Published by NHTSA: 2020\-10\-19
- Manufacturer's number: TSB150171\-092420
- Manufacturer's date: 2020\-09\-24
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

This Technical Service Bulletin describes the proper troubleshooting steps to diagnose lubricating oil found around the turbocharger section gear and the variable geometry turbucharger actuator gear. This is a normal and does not indicate that a malfunction has occured. This is an update to a previously submitted communication.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10181132-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10181132-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine

## Vehicles listed

- CUMMINS B6.7
- CUMMINS ISB6.7
- CUMMINS L9

JSON: [/v1/bulletins/10181132](/v1/bulletins/10181132)

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