running on mil-prf-83282 aviation hyd. fluid

[rattlecan6104]

I have looked through the threads on running other fuels in the multifuel engines, but I was wondering how MIL-PRF-83282 aviation hydraulic fluid would work. (I work in an aviation hydraulic shop, and we have plenty of waste hyd fluid still clean) I know it is fire resistant, but seems to have simmilar properties as ATF. Just wondering if anyone has tried this and what the result was/may be. any thoughts?

 

[scooter01922]

Certainly not sure on this, but i think i would avoid attempting to burn anything that is "fire resistant" in your multi. Plenty of other hydrocarbons to choose from that ignite readily

 

[sprucemt]

DESCRIPTION REQUIREMENT TYP. RESULT TEST METHOD
Kinematic Viscosity,
Centistokes

@ 40 °C, minimum 14.0 cSt 14.9 cSt ASTM-D455
@ 100 °C, minimum 3.45 cSt 3.6 cSt ASTM-D455
@ -40 °C, maximum 2200 cSt 2020 cSt ASTM-D455
Foaming, @ 25°C (Foam Height) Complete Collapse Complete Collapse ASTM-D892
Evaporation, Max 20% 16.3% FED STD 791
Pour Point, °C, max -55°C < -60°C ASTM-D97
Flash Point, °C, minimum 205°C 210°C ASTM-D92
Fire Point, °C, minimum 245°C 250°C ASTM-D92
Total acid number, max. 0.10 mg KOH/gm <0>100 10 max 2 ASTM-F312

 

[rattlecan6104]

I dont know much about chemestry, respectfully request dummy-dummy terms.

 

[Hammer]

Flash points for a few fuels.
All temps in F°
Diesel Fuel (1-D) 100
Diesel Fuel (2-D) 125
Diesel Fuel (4-D) 130

Fuels Oil No.1 100 - 162
Fuels Oil No.2 126 - 204
Fuels Oil No.4 142 - 240

Gear oil 375 - 580
Motor oil 420 - 485

 

[Hammer]

Oh, and the 205°C flash point of the oil you are talking about equals to 401°F.
That puts it in the range of motor oil for flash point.

 

[sprucemt]

Flashpoint of antifreeze 244 F.

Auto-ignition temperature 345°C, minimum (min.) for the oil being discussed.

 

[Hammer]

http://www.engineeringtoolbox.com/fuels-ignition-temperatures-d_171.html

Fuel Oil No.1 210c 410f
Fuel Oil No.2 256c 494f
Fuel Oil No.4 262c 505f
Gasoline 280c 536f
Petroleum 400c 752f
Propane 480c 842f - (didn't expect that one to be so high)

They don't list motor oil on this one though.

 

[Hammer]

Btw, I am not saying it will work, just the comparable values of other things we have used as fuels in these trucks.
And considering that 100% motor oil seems to work good for a number of people (not all), this oil might be within range. I wouldn't try it as a straight run of it though!

 

[sprucemt]

Naphtha 550c 1022f auto ignite. Now this really is odd that the highly flammable stuff auto ignites at a higher temp?
Anti freeze has a lower flashpoint but would you think antifreeze will burn as fuel. I don't think so. And of course this is way past my comfort level.
I believe in diesel or diesel kero mix.

 

[Hammer]

Yeah, I found it odd that the alcohols and such were having such high numbers like that!
But I know that alcohol race cars need higher powered spark ignition sources to run that fuel. I had always thought it was because the air/fuel ratio is around 6:1. But maybe the fuel itself is part of it.

Also, maybe we are missing a big point, gasoline is highly combustible mainly because it vaporizes easily. And that is the main part of how to get power from it.
We know diesel doesn't hardly vaporize, unless being sprayed at a very high pressure.

And yeah, you are hard pressed to go wrong with fuel from the pump.
But it sure is hard to pass up free fuel when there is enough there to just about drive all you want for free!