GM Service Manual Online
For 1990-2009 cars only

Global Brake Fluid DOT-4 Usage

Subject:Global Brake Fluid DOT-4 Usage

Models:2008-2009 Chevrolet Optra
Built After July 19, 2008



The following information may be helpful for the pre-delivery inspection (PDI) process and dealer repairs on the hydraulic brake system.

The brake fluid type has been changed from DOT-3 to DOT-4 for Global usage.

All vehicles built in GMDAT Gunsan plant have been using DOT-4 as hydraulic brake fluid since July 19, 2008.

DOT-4 (Yellow Cap)


Object Number: 2178384  Size: SH

DOT-3 (Black Cap)


Object Number: 2178385  Size: SH

The hydraulic brake fluid type is shown on the brake reservoir cap top surface as shown above.

Notice: Do not mix DOT-3 and DOT-4 brake fluid. If mixed, this may affect the rubber seal components in the hydraulic brake system.