View Full Version : Brake Fluid when is it too old?

Vaejovis carolinanus aka lowconabarth
03-22-2015, 02:40 PM
I was cleaning my storage area and found 2 sealed cans of this brake fluid it is 11 years old and as pic shows they have been wrapped in a plastic bag. Never opened looks clean no rust or dents. ATE Super Blue Racing Dot 4 Should I use?

03-22-2015, 04:24 PM
... it is 11 years old ...

I say no- it may be perfectly fine or it may not ... at 11 years old the odds are against it still being good, why take the chance? It may still have value as a collector's item- it seems the Feds (DOT) made Continental/ATE recall Super Blue because of the color ...

03-22-2015, 04:27 PM
Yeah too bad, racing blue was something we used quite a bit, in rotation with other clear brands. Very useful in determining new fluid was in the lines...

03-22-2015, 04:44 PM

I checked as much as I could on Google, and the consensus seems to be that if the container is sealed then the fluid's shelf life is indefinite. It doesn't degrade on its own - it only degrades in presence of moisture. I'd say if there is no evidence of moisture contamination from a badly sealed cap, then it's good.

If there were a shelf life issue, the bottles would likely be stamped with a clear manufacture date, since at small auto parts warehouses fluid might sit on the shelf unsold for several years, esp. specialty fluids.