[Av8rRob]

Ok guys, I'm about to order the Beringer brakes. You can choose which fluid you will be using. The lady I spoke to at Beringer said most people from the US choose the MIL-PRF-87257 fluid and most in Europe use the DOT-4. Sounds like there are pros and cons to each. Which did you choose and why?

Thanks

 

[TS Flightlines]

Order the cylinders with the Nitril seals for 87257 fluid. The EPDM seals are for DOT4, automotive brake fluid.

Tom

 

[RV6_flyer]

MIL-PRF-87257

Ok guys, I'm about to order the Beringer brakes. You can choose which fluid you will be using. The lady I spoke to at Beringer said most people from the US choose the MIL-PRF-87257 fluid and most in Europe use the DOT-4. Sounds like there are pros and cons to each. Which did you choose and why?

Thanks

MIL-PRF-87257 is synthetic MIL-5606 that does not burn (catch fire) as easy. It will still burn but reduces the risk of a brake fire over 5606. MIL-PRF-87257 can also be mixed with 5606. IF you are on a trip and land at an airport, there is a good chance you will be able to find seals and brake fluid at the airport that will work without having to make a trip to an auto parts store.

 

[bret]

I'm Experimenting with my Experimental, DEX 6 ATF, flash 428 F. compared to the aviation stuff 458 F. so far so good.

 

[TS Flightlines]

For nitrile seals, NOT for EDPM seals.
Tom

 

[Av8rRob]

So, the opinion is the mil is better than dot-4 fluid?

 

[YellowJacket RV9]

I have recently done the same research and decided on the Royco 782, aka MIL-PRF-83282, http://www.aircraftspruce.com/catalog/lgpages/anderolr782hf.php?clickkey=4008

Higher flashpoint than the 5606, no seal or compatibility issues, so I don't have to worry about completely flushing my system, or topping off with 5606 somewhere if that's all I can find. I am also going ahead and replacing my brake lines with stainless flex hose down the gear leg to make future service easier.

Chris

 

[Av8rRob]

Ok, so I ordered the mineral oil kit today. FYI, they are offering 30% off their kits now if you're on the fence.

 

[wirejock]

Brake fluid

Ok, so I ordered the mineral oil kit today. FYI, they are offering 30% off their kits now if you're on the fence.

Mineral oil kit?
I thought you were going with Barringer recommendation MIL-PRF-87257?.

 

[Av8rRob]

Yes, I'm getting the set with the nitrile seals for that type of fluid.