For the 2012 Chevrolet Colorado, automatic transmissions use Dexron VI automatic transmission fluid (ATF), while manual transmissions require a GL-4 gear oil such as 75W-90. The exact specification can vary by transmission code, so it’s important to check your owner’s manual or GM service documentation for your VIN.
The 2012 Colorado offered both automatic and manual transmissions. Fluid type depends on which transmission is installed in your truck. The sections below outline the recommended fluids for each configuration and provide practical maintenance reminders.
Automatic transmission (4L60-E)
Guidelines for the automatic transmission in the 2012 Colorado follow GM’s current recommendations for the 4L60-E family. The list below summarizes the approved fluid type and key cautions.
- Use Dexron VI automatic transmission fluid (ATF) as the primary fill for the 4L60-E automatic transmission.
- Older Dexron specifications (Dexron II/III) may be acceptable in some service situations, but Dexron VI is the recommended and backward-compatible standard for this transmission.
- When performing a transmission service, use a new ATF and avoid mixing different fluid types. Verify the exact fill capacity and procedures in the owner's manual or GM service information for your specific vehicle.
In short, Dexron VI ATF is the current standard for the automatic transmission in the 2012 Colorado, and following GM’s guidelines helps ensure proper shifting and longevity.
Manual transmission
The manual transmission in the 2012 Colorado uses gear oil rather than automatic fluid. The commonly recommended specification is API GL-4 gear oil, typically in the 75W-90 grade (some configurations may accept 80W-90). Always confirm the exact requirement for your transmission code in the owner's manual or GM service documentation.
The following points summarize typical options and cautions for the manual gearbox.
- Use API GL-4 gear oil, commonly 75W-90, or 80W-90 depending on the transmission code.
- Avoid using Dexron ATF in the manual transmission, as it is not suitable for GL-4 gearboxes and can cause wear and shifting issues.
- Check the owner’s manual or GM service data for your specific manual transmission model to confirm the exact specification and fill procedure.
Overall, the manual transmission in the 2012 Colorado typically requires GL-4 gear oil (often 75W-90); do not use automatic fluid in the manual gearbox.
Summary
For the 2012 Chevrolet Colorado, automatic transmissions require Dexron VI ATF, while manual transmissions require GL-4 gear oil (commonly 75W-90). Always verify the exact specification for your vehicle’s transmission code in the owner's manual or GM service information, and follow proper fill and maintenance procedures. Regular checks and timely changes help preserve shifting quality and transmission life.