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DOT 5 color

Tackettr

Member
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1
16
Location
Edmond/OK
Does DOT 5 brake fluid have a particular color? Fluid in my master cylinder is yellowish and was told it was DOT 5. I just thougth the military did a different color than the purple stuff I have from NAPA. Or do I have so other DOT in my truck?
 
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scooter01922

Well-known member
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Newbury, MA
I think that the DOT 5 turns that nasty color once it gets old. Have yet to see it myself but thats what i have heard around here.
 
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FormerNewMVGuy

Active member
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stockton NJ
It seems to turn color very quickly once in the system, Also i made a bleeder out of a garden sprayer, and left some dot five in it, Turned from purple to yellow in about a days time.
 
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sprucemt

New member
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Location
Warrensburg NY
There is dot 5 1010 and dot 5 1018. In the steel can one is purple, one is yellowish brown. The purple dot 5 in the sealed plastic jug turns yellowish brown when the dye is absorbed into the plastic.
 
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Recovry4x4

LLM/Member 785
Super Moderator
Steel Soldiers Supporter
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GA Mountains
My bleeder has had BFS in it for years, never turns. It always turns colors in the truck. FWIW I have BFS in plastic jugs and cans and it's all looked pretty much the same so far.
 

FormerNewMVGuy

Active member
1,237
10
38
Location
stockton NJ
Recovry4x4 said:
My bleeder has had BFS in it for years, never turns. It always turns colors in the truck. FWIW I have BFS in plastic jugs and cans and it's all looked pretty much the same so far.
Well mine turned color in my bleeder pretty quickly, It stay purple in the metal can, but when i put it in my bleeder it turns yellow in about a days time,
 

DDoyle

Well-known member
Supporting Vendor
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Location
West Tennessee
Having had an analytical chemical lab do some testing on DOT 5 and DOT 3, I can say with absolute certainty that if you mix the two, the purple color moves to the DOT3, leaving the DOT 5 clear.

Something to remember.

Regards,
David Doyle
 
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