Motul RBF 600 Brake Fluid ?

[CraigJones]

Has anyone ever used Motul RBF 600 Brake Fluid 5. 1 ? From what I read you can mix this with dot 3. Expensive $13 for . 5 liter but good stuff.

 

[Matt400]

I have installed Motul RBF 600 dot4 in a couple applications with good results but not the 5. 1. I don't know if 5. 1 is compatible with the ABS system on these trucks so warranty could be an issue.

 

[LightmanE300]

Yes it's compatible, no it's not worth the money in our trucks. RBF 600 is for racing applications and extreme high performance brakes. For about half the money you can get ATE Super blue which is a dot 4 but still has a really high wet boiling point. I posted about brake fluid flushing not too long ago and several members recommended Castrol brake fluid FWIW.

 

[WNowlan]

Just a note on brake fluid in general. Only buy what you need to change out. Do not reuse open containers, these products are hydroscopic (like water) and degrade when left open. OEM finally have made reservoirs so we can check levels without opening.

 

[LightmanE300]

Agreed - brake fluid is hyGroscopic - it attracts water. Definitely throw out what you have left over. A hydroscope is an optical device used for viewing objects far below the surface of water. Just a little tidbit on a commonly misprinted word

 

[redram]

Agreed - brake fluid is hyGroscopic - it attracts water. Definitely throw out what you have left over. A hydroscope is an optical device used for viewing objects far below the surface of water. Just a little tidbit on a commonly misprinted word

Hydroscopic and hydroscope are two different words. The first refers to having an attraction to absorbing water or having an affinity to water. If water would nto mix, the fluid would be considered hydrophobic.



In general, glycols (brake fluids) will tend to mix with water.

 

[dunderkofler]

According to Merriam-Webster online hydroscopic is not in the dictionary. The first word in the list that they suggest is hygroscopic (which is what LightmanE300 stated).



Dale the dictionary cop. :-laf