---
title: "CS 25J1551 Oil quantity indicator — CS-25 · Avioverse"
description: "Each oil quantity indicator must be marked with enough increments to indicate readily and accurately the quantity of oil."
url: "https://avioverse.aero/regulations/easa/cs-25/subpart-j/cs-25j1551-oil-quantity-indicator"
---

# CS 25J1551 Oil quantity indicator

Large Aeroplanes (CS-25) · CS-25 · EAR revision 26 Jan 2023

IR Implementing rule

## CS 25J1551 Oil quantity indicator

Each oil quantity indicator must be marked with enough increments to indicate readily and accurately the quantity of oil.

\[Amdt 25/1]

IR — CS-25 · ED Decision 2005/006/R · CS-25 Easy Access Rules · EAR revision 26 Jan 2023

[All rules in SUBPART J – AUXILIARY POWER UNIT INSTALLATIONS](https://avioverse.aero/regulations/easa/cs-25/subpart-j)

Consolidated from the EASA Easy Access Rules (revision 26 Jan 2023, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.