Seeing blue power steering fluid can be alarming at first. But in many cases, it’s completely normal and not a cause for concern. Here are some reasons why power steering fluid can be blue:
Dye Added at Factory
Many auto manufacturers add a special blue dye to power steering fluid at the factory. This helps:
- Identify the fluid as power steering fluid rather than transmission fluid or other types.
- Leak detection – the blue color makes leaks easy to spot.
- Anti-corrosion properties – the dye protects metal components.
As long as the fluid is not excessively dark, the blue color alone does not indicate a problem. Always check service records to confirm if dyed fluid was factory-filled.
Fluid Brand Differences
Some brands of power steering fluid have a more natural blue tint than others. For example:
- Prestone power steering fluid is a bright blue.
- Lucas power steering fluid is more teal.
- Honda, Toyota, and Volkswagen fluids also tend to be very blue.
If in doubt, check your owner’s manual for recommended brands and compare colors. As long as the fluid matches what’s recommended, the color variation is not an issue.
Contamination from Transmission Fluid
If transmission fluid mixes with power steering fluid, it can create a dark, inky blue color. This points to a leak between the two systems that should be addressed. The fluids should not intermix.
Signs of Actual Issues
While blue power steering fluid alone is not problematic, also watch for these warning signs:
- Thick sludge-like consistency or particle deposits
- Burnt smell indicating overheating
- Excessively dark color indicating contamination
- Low fluid level
So in summary – blue power steering fluid is normal in many cases thanks to dye. But monitor its condition and address any signs of overheating, leaking, or contamination.
Frequently Asked Questions
Should I Flush My Power Steering Fluid if it’s Blue?
Not necessarily – you can leave blue dyed factory fluid in place unless you see signs of deterioration.
What Color Should Power Steering Fluid be?
It can range from amber, to pink, to bright blue depending on the vehicle and fluid brand. Check your manual.
Does the Blue Dye Affect Performance?
No, it will not cause any loss in performance. The dye helps identification and prevents corrosion.
What if My Fluid is Brown? is that Bad?
Yes, brown fluid indicates oxidation and contamination. Flush and replace it with fresh fluid.