Opened gallon of Toyota Super Long Life 50/50 coolant shelf life?

[Mikey V.]

Does an opened gallon of Toyota SLLC have a shelf life? I have a 3/4 full gallon of TSLLC that is from 2020 and its been stored in my bedroom closet the last three years. Any harm in using it to top off my system?

 

[Mikey V.]

 

[Chris142]

There's cars that go decades on coolant with no maintenance at all

 

[Rand]

So if it lasts 10 years in the car.. it should last longer than that in a bottle.

 

[Lubener]

Does an opened gallon of Toyota SLLC have a shelf life? I have a 3/4 full gallon of TSLLC that is from 2020 and its been stored in my bedroom closet the last three years. Any harm in using it to top off my system?

I have used 10 year old green premix before without any problems. I wouldn't be concerned with your Toyota mix..

 

[Sequoiasoon]

What are the other skeletons in that bedroom closet?

 

[Kira]

^^Perhaps he has some lead paint or maybe even some German Castrol?

 

[pbm]

As long as the cap was on the bottle tightly I’d use that coolant without a second thought.

 

[Plawan]

Does an opened gallon of Toyota SLLC have a shelf life? I have a 3/4 full gallon of TSLLC that is from 2020 and its been stored in my bedroom closet the last three years. Any harm in using it to top off my system?

Your good to go