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Brake Fluid? Castrol LMA synthetic okay to use?

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Old 05-15-2013, 01:17 AM   #1
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Brake Fluid? Castrol LMA synthetic okay to use?

ive recently got the wheelers ss brake lines all around was planning on changing them all this week. was wandering about the fluid i have a huge ass bottle of castrol lma synthetic brake fluid sitting in the garaged. is it alright to use this fluid in the tacoma. its a 03 DC. is it alright to just mix with the fluid in there when im bleeding the brakes? sorry if a dumb question lol. dont know much about bleeding brakes....

thanks for any help
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Old 05-15-2013, 06:11 AM   #2
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I would stick to conventional brake fluid.. Synthetic fluid doesn't absorb water like regular does, therefore when moisture enters the system it will sit in the lines and cause corrosion. The conventional fluid would absorb the moisture, then after its shot you flush it out and everything's awesome. My vote says get some conventional and do a brake flush front and back
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Old 05-15-2013, 08:07 AM   #3
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If you go to dot 5 (silicone), you have to complexly flush your brake lines and calipers...ever little bit of dot 3/4 fluid has to be cleaned out. It's a big hassle to do it right.
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Old 05-15-2013, 08:58 AM   #4
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If it's a sealed bottle, I'd go for it. Since it absorbs less moisture, you won't have to flush/bleed as often. Just make sure to bleed all the old out.
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Old 05-15-2013, 11:22 AM   #5
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thats where im confused it doesnt say dot 5 anywhere.. just says synthetic. unless synthetic is dot 5?
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Old 05-15-2013, 11:30 AM   #6
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Dot 5 is silicone...should be purple in color to. That is how they indicate the difference. It is NOT compatible with Dot 3 or 4.
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Old 05-15-2013, 11:55 AM   #7
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DOT 4:http://weaponxmotorsports.myshopify....ic-brake-fluid
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Old 05-15-2013, 04:42 PM   #8
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Cool thanks for the help would. I found some more info saying that the castrol lma is in its own class it's not a dot 5.1 nor a 4 but is comparable with dot 3 and 4.
Here is the link to the article if anybody is interested.

http://www.gomog.com/allmorgan/brakefluid.html
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Old 05-15-2013, 06:15 PM   #9
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what size flare nut wrenches would i need is it a 10mm and a 17 mm? its an 03 double cab
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