Engine Oil - Leak Detection Dye

Number: 84-4

Section: VI

Date: Oct., 1983
Subject: RED COLORED ENGINE OIL


Model and Year: 1983-1984 VEHICLES
EQUIPPED WITH 2.5L ENGINE
TO: ALL CHEVROLET DEALERS

Some late production 1983 and all 1984 vehicles equipped with the 2.5L L-4 engine will have red colored engine oil. The red color is due to the red dye which is added to the engine oil to aid in detecting leaks during manufacturing.

The red dye does not affect any lubrication characteristics of the engine oil and, therefore, the oil should not be changed.

Owners should also be made aware of this practice.