yamahaSHO

If it's sealed up in its metal can, it'll be fine for quite some time... It's doing better than what's sitting in your reservoir on the car.

Fokker

I've bought multiple off ebay and so far it's all the real stuff.

INDYMAC

If it's sealed up in its metal can, it'll be fine for quite some time... It's doing better than what's sitting in your reservoir on the car.
[/quote]

Is that what it says on the brake fluid label you have? I've never seen a manufacturer's label that says that, or a service manual, or a chemist. In fact, it's always the opposite (only use an unopened bottle of brake fluid because it's hygroscopic).

eyemgh

Dyes can be found in solid form. Then no water would be added. Even if I did use food coloring, we're talking a few drops per liter. Living in Oregon, it seems like that's pretty low on the water threat level, but I just don't know how much water is absorbed in toto over the life span of brake fluid.

Billman250

You can open brake fluid and re-cap it and store it as long as you want.

The quote "use brake fluid from a sealed container" means the new bottle you have, and the re-capped bottle you have (they are both sealed containers)

NOT the bottle that you found open, and do not know how long it's been uncapped. THAT bottle would be tossed (as it is not a sealed container)

This is a huge misconception in the automotive industry.

INDYMAC

Thanks Bill. You're very helpful. I'll stop throwing away brake fluid now.

postman

Some dot 5 fluids are purple in color. This would be my only guess as to why they want to stop super blue. Since dot 3,4 cant be mixed with dot 5.And yes you can use brake fluid that has been capped and stored properly.

yamahaSHO

If it's sealed up in its metal can, it'll be fine for quite some time... It's doing better than what's sitting in your reservoir on the car.
[/quote]

Is that what it says on the brake fluid label you have? I've never seen a manufacturer's label that says that, or a service manual, or a chemist. In fact, it's always the opposite (only use an unopened bottle of brake fluid because it's hygroscopic).
[/quote]

I can't believe you're serious... Don't you spend a lot of time on BITOG?

I assure you that the fluid in your plastic reservoir is absorbing more water than the fluid in a sealed metal can.

INDYMAC

If it's sealed up in its metal can, it'll be fine for quite some time... It's doing better than what's sitting in your reservoir on the car.
[/quote]

Is that what it says on the brake fluid label you have? I've never seen a manufacturer's label that says that, or a service manual, or a chemist. In fact, it's always the opposite (only use an unopened bottle of brake fluid because it's hygroscopic).
[/quote]

I can't believe you're serious... Don't you spend a lot of time on BITOG?

I assure you that the fluid in your plastic reservoir is absorbing more water than the fluid in a sealed metal can.
[/quote]

Yes, I'm serious. What manufacturer states that this is OK? What service manual? Can you show me a credible source on BITOG that says this is a good idea.The only person I consider credible on the subject is Billman. And I'll still probably go buy a fresh bottle when I need some anyway. It's cheap and then there are no concerns at all.

I apologize. I was wrong, and so are many others I guess. From the back of a Toyota DOT 3 bottle:

"Store brake fluid only in its original container. Keep container clean and tightly closed to prevent absorption of moisture."

AZS2KDancer

What is B BITOG?