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A Question About Burning Hydraulic Fluid

12K views 9 replies 5 participants last post by  jigsaw725  
#1 ·
I really need some input. I have been burning hydraulic fluid and have recently gained access to a lot of it from an Air National Guard Base. It is the used fluid drained from KC-135 jets (inflight refueling tankers). My question concerns the fact I have been told it is synthetic fluid. The label from the original container says the following: "Hydraulic Fluid, Fire Resistant;MIL-PRF-87257B;P/N RADCOLUBE FR257;150-01-388-7769; RADCO Industries, Inc., 1RVC4"
Under precautions it states "Keep away from source of ignition."
I have also gained access to "used" jet fuel from these planes that is drained when the tanks have to be pumped to repair fuel leaks.
I am wondering if I can burn this hydraulic fluid in my vehicles. I have a 2000 F250 and three 123 Mercedes diesels. Also would like to know of any known problems with the jet fuel. I have a centrifuge to clean all this.
Thanks for any input.
 
#2 ·
You sound concerned but if I had your problem, I would be doing the happy dance :thup:

Hydraulic oil is my favorite. Synthetic blend hydraulic oil would be my second favorite. What you have should blend up perfect with jet fuel.

Don't use the jet fuel straight. I bet that the MB will enjoy a HF/JF mix.

A pyrometer on the ford would be a good idea.
 
#4 ·
"Synthetic" can be used to describe an oil that was created using alternate means. It doesn't mean bad. Maybe somebody had a bad experience with oil labeled synthetic, but I have not. And I doubt that you will.

Each altfueler must decide what works for them, but I would try your supply in a heartbeat.


RADCO » MIL-PRF-87257B
 
#5 ·
No problem whatsoever. Synthetic fluid - to many people's surprise - is still a petroleum product. It burns great. Probably the only good thing about it. Like 48Chevy6 said, don't burn the jet fuel straight - it has no lubricity additives. Mix at least a gallon or two of hydraulic oil to the jet fuel minimum per tank, but running it at any ratio north of there would be good. If you ran 50/50, it would probably burn perfectly. Also like 48Chevy6 said - I'd love to have your problem...
 
#6 ·
Me too.
 
#7 ·
I am going to take the advice of you guys and give this a try. I'm actually going to be able to get quite a bit more hydraulic fluid than jet fuel because they do use a good bit of the drained jet fuel to power generators in the engine shop. Even if I get no jet fuel I can centrifuge the hydraulic fluid and put in a little RUG. I have been doing that with the non-synthetic hydraulic fluid I have been running. I was told yesterday the ANG base has 150 gallons of the synthetic stuff ready for me to pick up. I will report back on results. If any of you have more tips on how I should run this please let me know. I would be interested to know if it would be better to mix it with D2 or RUG.
 
#8 ·
I did a batch of WHO 92.

Waste hydraulic oil, 92% mixed 8% with RUG. It was almost too thin.

If you were super nervous conservative, mix 50/50 who and pump diesel.