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Endless RF-650 Racing Super Fluid - Product Spotlight

Doug Neilson
Oct 11, 2011
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It isn’t often that I go completely gaga over a given product, but when the product blows my expectations out of the water and does something almost magical, it’s time to tell all.

I first read about Endless RF-650 racing brake fluid last summer on a favorite car forum of mine. The thread I found described a slight change in brake pedal feel that I too experienced in my GT3 after 8 to 10 hard, hot laps at my 2-mile home track. Once there was a substantial amount of heat in the brakes, the pedal would exhibit a slight mushiness that was just enough to distract or worry the driver (e.g., me, and I didn’t like it one bit).

FYI: When one notices such a change in the pedal feel when driving at ten-tenths, the wise thing to do is to back off the throttle, let the car cool down and get into the pits before something bad happens. After experiencing this performance flaw a number of times and thoroughly checking my brake system hardware and flushing/bleeding the hydraulic system with a brand name race fluid, I figured it was an inherent issue with my car. As it turned out, I couldn’t find anything wrong, and the problem did not get worse when I continued driving hard, as I later discovered. I also tried various brands of racing fluid, so I was still fairly sure the problem was indeed inherent. One time I even upgraded to a race-quality caliper and rotor brake setup on all four corners, but the issue persisted, albeit after 12 to 14 hot laps instead of 8 to 10.

Epcp 1111 01 o+endless rf 650+super fluid Photo 2/2   |   Endless RF-650 Racing Super Fluid - Product Spotlight

Soon after I installed the new brakes, I stumbled across the above-mentioned forum thread. It went on to describe Endless RF-650 brake fluid as some sort of miracle fix to the same brake system issue I had. Always wary of the information I read on the web, I decided this time I would suck it up and give it a try, since I had nothing to lose but the $36 per 500ml bottle (two bottles are required to flush most European brake systems).

The results were astonishing. My “mushy-when-hot” pedal issue had completely disappeared under the same multi-lap ten-tenths running conditions and indefinitely beyond, just as the thread had described. I also found my pedal feel to be harder and perfectly consistent under all driving conditions on the street or track. The problem was solved—with the added bonus of improved brake pedal feel and control.

I have since recommended Endless RF-650 to several friends who have all noted similar results. This in itself is amazing. Fittingly, RF-650 is becoming recognized as the highest-spec brake fluid around the world, the same fluid used by Formula One, Touring Car and WRC Rally teams. The specifications of this “magic” polyalkaline glycol ether-based fluid are as follows:

• Dry boiling point: 323° C (613° F)

• Wet boiling point: 218° C (424° F)

• Freezing point: -40° C (-40° F)

Endless RF-650 is currently the official brake fluid supplier to the Mercedes GP Formula One team, and is the factory fill for all new Porsche Cup cars. What else do you need to know? —Doug Neilson

Endless USA
714.842.8551
endlessusa.com

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By Doug Neilson
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