Which DOT3 for long lasting corrosion inhibitors?

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I did a thorough brake fluid flush one and a half years ago using O'Reilly's brand of DOT3.

But I already have a green tint to the fluid in the master cylinder.

Which DOT3 has the longest lasting corrosion inhibitors?
 
I would guess there are only a few companies in the world that make break fluid.
 
Brake fluid is hygroscopic which means it will absorb moisture. Just the nature of brake fluid. Parts won't corrode if there's no water. Maybe your cap isn't on tight or you have a leak somewhere so the fluid is contaminated.
 
I've had very good service from Valvoline DOT 3 and 4 "synthetic brake fluid"..available at most FLAPS..good stuff even though the marketing people overused the term synthetic.
 
Try Honda, Toyota, Nissan... parts department for OE brake fluid.

I could care less which fluid has longest lasting corrosion inhibitors. Just bleed it out every year or 2.

Green tint? I've had cars new with green tinted brake fluid. Not sure why a certain fluid brand had issues with their colored fluid.

Use copper/moisture test strips and not color to help determine brake fluid condition:
http://www.acustrip.com/cgi-bin/prodcat.cgi?pc=Brake
http://www.brakebleeder.com/product-category/brake-fluid-testing/
 
Originally Posted By: Greasymechtech
Try Honda, Toyota, Nissan... parts department for OE brake fluid. I could care less which fluid has longest lasting corrosion inhibitors. Just bleed it out every year or 2.
Green tint? I've had cars new with green tinted brake fluid. Not sure why a certain fluid brand had issues with their colored fluid.

Use copper/moisture test strips and not color to help determine brake fluid condition:
http://www.acustrip.com/cgi-bin/prodcat.cgi?pc=Brake
http://www.brakebleeder.com/product-category/brake-fluid-testing/
For the price of these testing strips would it not just be cheaper to change the fluid? Perhaps, they come in smaller quantities?
 
Originally Posted By: Greasymechtech
Its like a UOA. Why UOA if a jug of oil and filter are cheaper?

$10 strips vs. $100 shop bleed????
http://www.brakebleeder.com/products/bra...tail-packaging/

The volume strip sizes are for shops that are going to sell a bleed. OTC and EBC have faith in electronic testers, many can be found on Ebay/Amazon for div>
Understood on the UOA price versus oil change, but the prices in the original links that you posted were up to 10x that cost ($200+) and I took it as those were prices for individuals (not a shop). Thanks for the clarification.
 
Originally Posted By: Greasymechtech
Its like a UOA. Why UOA if a jug of oil and filter are cheaper?

$10 strips vs. $100 shop bleed????
http://www.brakebleeder.com/products/bra...tail-packaging/

The volume strip sizes are for shops that are going to sell a bleed.

OTC and EBC have faith in electronic testers, many can be found on Ebay/Amazon for div>


A self bleed is under $100 though, probably about $2-$6 for 12-32 oz of brake fluid. Also some people just do a gravity bleed, but you can get anyone to pump the brakes.
 
Originally Posted By: Wolf359
Brake fluid is hygroscopic which means it will absorb moisture. Just the nature of brake fluid. Parts won't corrode if there's no water. Maybe your cap isn't on tight or you have a leak somewhere so the fluid is contaminated.


Best statement so far( hygroscopic). That's why it's a good idea to do a fluid flush to finish off a brake job.With a helper to pump the brakes, you can do all four wheels in twenty minutes. Also, the brand of fluid is meaningless. Whatever is specified (DOT3 or 4) has to meet certain standards, don't get hung up on the brand.
 
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