duncagr

duncagr

Member
Hi all. I have been offered around 2500-3000 litres of used (but very clean) hydraulic oil free of charge. I have read the "Cooking oil in TD5" thread from start to finish, including the fights and lengthy duty discussions.

I'm not really interested in anything other than whether this oil will be suitable for my TD5. In particular, I'm unsure whether the oils Kinematic Viscosity at 40'C is too high (32cSt) compared to DERV (4-6cSt).

Will the circulation of the fuel system mix them well enough to counter this, I don't know?

Data sheet of the Hydraulic Oil is here:

http://msdspds.castrol.com/bpglis/FusionPDS.nsf/Files/D213EC16C7F732A58025770C00429766/$File/Hyspin%20AWH-M%20Range.pdf

I'd be delighted if someone could help.

Gordon
 
Yeah, I knew there was going to be some going free but couldn't believe the amount. From the 5 yearly service of a wind farm up the road from me. Fingers crossed it's good for the job...
 
Just read a few parts of that td5 cooking oil thread and I'm quite surprised about people running td5s on used engine oil. If that's the case then the hydraulic oil will be fine. If its 32 or 46 spec then it won't need thinning much either. the Hyspin aws spec is an anti wear formula so shouldn't do any harm to moving parts as long as its filtered a bit before use.

Personally I would gradually increase the mix of hydraulic oil to diesel until it either starts smoking too much or the engine starts having problems (cant see it somehow)
 
Yes it's the 32 spec that's on offer. It's in 20 litre drums so I plan to filter a couple and use them to test the water, a gradual increase in mix as you suggest, before investing in a larger tank with an in-line filter and all that.

Just for peace of mind I was after someone to tell me it will all be ok.
 
Take all you can get and store. Start with a 25/75 mix of oil to diesel and work your way up from there until you and you're engine are happy. Even if you settle on a 50/50 mix you are cutting your fuel bills in half.
 
Thanks all for the advice and comment. I will update on my progress - might be a few weeks before I get started.

Gordon
 
do a search, it has been discussed before, hyd oil if fine through the old in line injector pumps, it seizes up cav rotary pumps so i would not entertain it in td5 pump. just my opinion.
 
freelance said:
do a search, it has been discussed before, hyd oil if fine through the old in line injector pumps, it seizes up cav rotary pumps so i would not entertain it in td5 pump. just my opinion.
Click to expand...
????? Explain.

TD5 is even more suited to the stuff as it does not have an injection pump. Injection pressure is generated in the injector body at between 2000 and 3300 bar depending on whether you have an EU2 or EU3 spec engine. Been running various exotic oils for years and over 60k miles with no problems and "CLEAN" hydraulic oils are far and above the best. Dare I say it even better than proper diesel.
 
freelance said:
do a search, it has been discussed before, hyd oil if fine through the old in line injector pumps, it seizes up cav rotary pumps so i would not entertain it in td5 pump. just my opinion.
Click to expand...

The CAV pumps are just plain weak, they don't even last well on diesel, so these pumps are not good for making a decision on suitability of oils as fuels.

A Bosch pump on the 200/300's will cope with it no bother, the TD5, like Shifty says, is even more suited to it as it just has an electric in tank pump, the high pressure is generated by the injector themselves.

If the viscosity was excessive the TD5 pump wouldn't much like it, but that would be more due to trying to push it through the filter.
 
i am getting a lot of grief with denso common rail pumps at the mo, caused by (alledgedly) dirty diesel and fuel out of spec so i am probably a bit biased and blinkered.
 
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