# Service bulletin ATC2485

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: 10203187
- Published by NHTSA: 2021\-11\-08
- Manufacturer's number: ATC2485
- Manufacturer's date: 2021\-09\-09
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

This Account Team Coverage is being issued to address oil consumption above published specification limits on certain ISX12 G CM2180 EJ and ISX12N CM2380 X120B engines. In some cases, the oil consumption may result in knock faults, repeat misfire, engine miss, rough running, and/or low power.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203187-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203187-9999.pdf)

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

## Components

Engine

## Vehicles listed

- CUMMINS ISX12
- CUMMINS ISX12G

JSON: [/v1/bulletins/10203187](/v1/bulletins/10203187)

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