GrantG

Very nice pedal feel and long bleeding intervals too.

obsessedone

Depends on how you want to use it. As I understand it the dry/wet boiling points are:

Endless 323 C / 218 C

SRF 310 C / 270 C

So, Endless is better (higher boiling point) fresh out of the bottle - if you bleed before every event, save money and use Endless. But if you don't want to bleed before every event the much higher "wet" boiling point of SRF is a real advantage - since after some time in your master cylinder the fluids absorb moisture and become "wet".

GrantG

Your analysis is not taking into account the fact that Endless absorbs moisture more slowly, so the bleed intervals for Endless are longer than the numbers above might suggest.

obsessedone

SRF makes similar claim about reduced moisture absorbancy.

After being disappointed in ATE gold and blue, and Motul 600 & 660 when they boiled at every event, I switched to SRF without trying any more fluids along the way - maybe if I had seen your write up a year ago I would have tried Endless.

Hey, if you are happy with Endless that's great. Similarly, I have been happy with SRF and plan to stick with it.

beentherebaby

Basically the dry boiling point and moisture content of the fluid is all that matters. Anyone boiling dry brake fluid with a 500+ F boiling point has a caliper cooling issue.

GrantG

Yeah, I think you can't go wrong with either - they are both among the best available.

ooberge

I use rbf motul 660 with p50 pads on my pccb s

scott40

So I may give Endless a try, if that's what the Cups get. I doubt I will drive it as hard as those guys do

Larry Cable

+1 for SRF

mdrums

So where is a good place to get the Endless fluid.

I've been using Motul RBF660 an it works well but I can boil the fluid especially in the summer. I bleed for every event too. Flush after around 5 events.

GrantG

Here's a place. Note that the bottles are small, 0.5L:
http://www.worksevo.com/store/produc...=google-simple

bgiere

I was getting Endless RF 650 at Vivid Racing... There are quite a few comparisons written up..just Google "Endless RF 650".

Izzone

GMG sells endless

malmasri

The people that say they do not have to bleed with SRF....what exactly do you mean in a period on 4-6 month?

TRAKCAR

I replace SRF when I replace pads. Thats 4 track events or 4 months. I never bleed in between.
On days 6-7-8 the pedal gets softer, but I think that is just the worn pads and extra heat? The car always stops.