AP r3 brake fluid

[danny14]

Anyone else using ap r3 brake fluid I'm trying it out for the first time has a very high boiling point of 325 deg c rated as a dot 4

[KiwiRS4T]

I use Motul RBF660 which has the same claimed boiling point. I guess it just comes down to price and availability

[niZmO_Man]

Penrite SIN/Racing had the same claim, although they are impossible to find these days (also price went up drastically).

[racegtst]

I use the AP R3 brake fluid and have not had a problem yet. 

 

I advertised 5 bottles that I have which are surplus to my needs at $55 per bottle. 

 

Message me here if you want more info.

[MrStabby]

That AP bottle shape/profile is exactly the same as the Motul bottle. The fluids may come from the same factory and just get an AP or Motul cap colour and label.

[burn4005]

The absolute best fluid unless you are going to change it right before every track day is Castrol SRF. its a Silicate Ester fluid, gives a slightly softer pedal feel.

but its wet boiling point is MILES ahead of the competition. (270c for SRF, 204c for RBF660). they all start around 320-325 dry, but as soon as they start absorbing water (which is immediate, they are hygroscopic) the SRF is the better fluid.

its dear as poison ($110/L) but flushing brakes all the time sucks. and ends up being cheaper due to way less flushes.

Edited September 25, 2018 by burn4005