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Brake Fluid = ATF?


Doug G.

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Hi all,

I just recieved an order from CPS. They had a small bottle of what was calld "Brake Fluid" on-line. When it arrived it turns out it is Dexron III automatic transmission fluid - the invoice says "brake fluid - ATF." The color is right, but is this the right stuff for a CTLS?

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Yeah, I was going to purchase the Aeroshell from Aircraft Spruce, but was putting in an order with CPS. I can't believe they would repackage Dexron and claim it is brake fluid. Not worth sending back - I guess orders from them have to be phone orders.

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I went to CPS and looked. It does say ATF brake fluid.

Aircraft Spruce sells 5606. I just got a Qt. from Spruce and it says it is 5606 and was $9.85.

 

For us I think I would buy our 5606 brake fluid from Spruce and not CPS. Matco recomends 5606 and absolutely do not use any of the DOT fluids or it will eat your "O" rings and make them leak and some of the white plastic lines on the earlier CT modles may spring a leak. Will the other ATF fluid work, probably, but I couldn't swear by it.

 

A call to Matco would be in oder to get the best answer.

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FYI,

 

Just got off the phone with Matco. Automotive ATF fluid is okay. The only major difference is the high and low temp range, but ATF fluid will not harm the seals. There is an ever so slight difference in the additive package, but nothing that will affect us. The DOT fluids are a definite no no except for DOT 5. Dot 5 can be used and it will not hurt the seals.

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  • 2 weeks later...

I'll have to take a picture of the bottle next time I get to the hanger. It says Dexron III on a non-corporate label on a cheap plastic bottle. I think it is time for you to check out the warehouse and see what you are actually shipping.

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This is for CPS customer service--

I have attached a picture of the bottle of "brake fluid" you sent to me. It is still in the sealed bag and, if you wish I can post the bag label also. As you can see it is clearly labeled Dexron III, but given what you are telling me I am not exactly sure what is in the bottle since you "don't repackage" such stuff.

 

I did not appreciate your intimating that I was either lieing or having delusions. I would apreciate an apology and an explanation of how the Dexron label got on the bottle.

 

--Just saying it don't make it so.

 

If this is not clear enough I can send you the unreduced file directly if you give me an address.

post-785-0-03574300-1362787049_thumb.jpg

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Thanks to Doug for pointing out that the brake fluid that CPS carries is indeed Dexron III. We do get this fluid from Hegar Products and apparently Hegar pours it down into these smaller bottles. It is our understanding that Dexron III is equivalent to standard automatic transmission fluid (ATF). Sorry for any confusion, and if there are any further concerns about this fluid please let us know.

 

CPS Customer Service Dept.

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CPS,

 

Way to "man up" and take responsibility.

 

It is our understanding that Dexron III is equivalent to standard automatic transmission fluid (ATF).

 

Good to know.

 

But it would behoove owners to make sure that substituting it for what's called for in their AMM is authorized.

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  • 3 years later...

What is the material and specs for the brake lining ?   Mine are starting to get brittle and actually had them burst (and lost brake during a 5000rpm run up)  -  Reminder to be careful and reach for the ignition off quickly ---   

i measured mine and it looks like 4mm - does that sound correct - as CPS has brake line that is 1/8OD

2006 Original Brake

Thanks

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