When do new/unopened chemicals "go bad" over time?

[cammyfive79]

Back in 2013 I had a 2010 Acura TSX and before I foolishly traded it in, I ordered quite a few chemicals/parts for a "tune up". I stored them in a friends garage back in 2013 and later moved to another state and forgot about everything as I traded that particular car off. A little over 11 years later I find myself owning the same generation of car (a 2014 TSX with ultra low miles that I posted about a few times here) and wondering if I could juse some of these chemicals in a future maintenance. The parts I'm sure are fine but not sure when new/unopened chemicals may not be good to use. Here is a list of what I bought:
*Engine Air & Cabin Filter - these should be fine
*Oil Filters - these should be fine
*Front Brake Pads - these should be fine

What I'm unsure of:
*2 gallons of OEM engine coolant
*3 pints of OEM DOT 3 brake fluid

Being well over 11 years old, would the above be past an expiration date even if it was never opened/used?

 

[JohnnyG]

Back in 2013 I had a 2010 Acura TSX and before I foolishly traded it in, I ordered quite a few chemicals/parts for a "tune up". I stored them in a friends garage back in 2013 and later moved to another state and forgot about everything as I traded that particular car off. A little over 11 years later I find myself owning the same generation of car (a 2014 TSX with ultra low miles that I posted about a few times here) and wondering if I could juse some of these chemicals in a future maintenance. The parts I'm sure are fine but not sure when new/unopened chemicals may not be good to use. Here is a list of what I bought:
*Engine Air & Cabin Filter - these should be fine
*Oil Filters - these should be fine
*Front Brake Pads - these should be fine

What I'm unsure of:
*2 gallons of OEM engine coolant
*3 pints of OEM DOT 3 brake fluid

Being well over 11 years old, would the above be past an expiration date even if it was never opened/used?

Brake fluid is likely bad, even if it was in a sealed container.
Coolant prob ok.

 

[The Critic]

Fluids and oil filter should be discarded.

Brake fluid may absorb moisture when in storage. Coolant additives have a limited timespan.

I would also discard the oil filter. The glues holding the element to the end caps may not be as effective; you don’t want the filter to come apart.

 

[Gyro Gearloose]

I would dispose of the fluids. Plastic containers are impervious only on a short time scale. Likely a noticeable amount of coolant has evaporated through the walls of the jug after 13 years and hygroscopic brake fluid has acquired moisture. I have found antifreeze jugs caved in I when I went to use them again after only 3-4 years on the shelf.

 

[cammyfive79]

The chemicals will be discarded, I'll keep the brake pads and air & cabin filter for a future service.