Hydraulic oil as diesel fuel

[veggie]

Anyone had experience burning hydraulic oils for any length of time.?
I have access to some Exxon NUTO 32 hydraulic oil (new).
I wonder if it may have additives which inhibit combustion or form excessive deposits.
The flash point of this oil is very adequate at 220f  correction 220C (414f).

veggie

[rl71459]

I have run straight "mobil dte medium" as well as a mixture of dte/vactra (With a dash of rug in winter)

I have run the mixture described above for over 2 years in my 86' mbz 190dt without any noticable
problems.

I also use this and other blends in my genset (c201 isuzu eng) but only for power outs and or testing I
have yet to have a problem with it either.

Rob

[mobile_bob]

the 195 changfa idi, loves hydraulic oil, runs smoother, makes a bit more power, and efficiency as measured
by bsfc in gal/kw/hr is higher by about 3%.

bob g

[billswan]

Have run straight waste motor oil and hydraulic oils with no serious problems yet

But mixing in a little diesel to thin would be better.

Billswan

[rcavictim]

I have some hydraulic oil that is intended for multi use in transmissions where it also has to have EP additives (smells like sulfur as do hypoid gear oils).  It does not burn clean, even with injector heat and makes horrible stinky smoke and the exhaust coats everything with horrible goo, just like the oil industry is doing to the southern US gulf coast states.

I think it will be great to top up the hydraulic system in my loader or use perhaps as a low friction gear lube in the gearbox of my wind turbine to reduce losses especially in colder weather.  As a diesel engine fuel it is a no go.  I don't know if I can use it in a waste oil burning furnace.  If I can then it will eventually be of help to me.

[mobile_bob]

don't burn the EP rated lubes, or any  of the sulfer based oils,
some produce some rather nasty toxins, and the sulfer condenses out as sulfuric acid in your exhaust
very corrosive.

bob g

[veggie]

The NUTO 32 oil does not appear to be an EP oil.
Spec sheet:
http://www.exxon.com/usa-english/lubes/pds/nausenindexnutoh.asp
However...it is a "lubricating" hydrauilic oil so my injector pump should last forever 

veggie

[rcavictim]

don't burn the EP rated lubes, or any  of the sulfer based oils,
some produce some rather nasty toxins, and the sulfer condenses out as sulfuric acid in your exhaust
very corrosive.

bob g

OK, but care to answer this question?  The good old stinky desel fuel we used for nearly 100 years which only recently went to higher levels of refinement and greatly reduced sulfur had....SULFER in it.  How is it then that sulfur in EP oil is such a bad thing?  Clearly I'm no fuels chemist, nor have I ever played one on TV.

[mobile_bob]

i am no chemist either, but i think the problem is the higher level of sulfur
the EP lube probably has several times  the sulfur that the old diesel had in it.

bob g

[rl71459]

At work we use "High Sulfur" Cutting Oil for very difficult to machine materials. It works very well!
It also STINKS real bad! When repairing the pumps that deliver the stuff they always have a coating
in them! And the stuff does not clean off! almost as if its impregnated the material. It may kill a IP.
I do know it attacks some seals/rubber... Viton is usually required to deal with the stuff.

Just to Clarify... I'm no Chemist,Metalurgist,Scientist or anything else of any significance! Just a
hands on HACK! that has been exposed to it in the field and delt with its characteristics a bit...
(about 30 years so far)

I am now curious of how much sulfur is in the stuff and how (or if) it could be related to the amounts
contained in various diesel fuels.

Rob

[Tom Reed]

I've been burning waste hydraulic oil in my 6/1 since last winter with mixed results. First off I don't know what type of oil it is, but it isn't stinky just kind of redish brown in color. This was oil from work that was given to me, it came off of a filtered system so it is very clean.

The engine starts and runs very well on it, however after about 15 hour there is a carbon build up on the injector tip that cause low power and lots of black smoke. The deposits have built up to 1/4" long along each of the holes in the nozzle. Cleaning the injector tip restores things to proper operation. The head was off about 100 hours ago with about 950 hours of run time on all types of fuel and there was no significant carbon deposits to be found.

[rcavictim]

I've been burning waste hydraulic oil in my 6/1 since last winter with mixed results. First off I don't know what type of oil it is, but it isn't stinky just kind of redish brown in color. This was oil from work that was given to me, it came off of a filtered system so it is very clean.

The engine starts and runs very well on it, however after about 15 hour there is a carbon build up on the injector tip that cause low power and lots of black smoke. The deposits have built up to 1/4" long along each of the holes in the nozzle. Cleaning the injector tip restores things to proper operation. The head was off about 100 hours ago with about 950 hours of run time on all types of fuel and there was no significant carbon deposits to be found.

Tom,

I think you need to wind an electric heating element around your injector nozzle.  60-75 watts ought to do it.  Try to get the injector body up to 300F.