Jannica

Has anyone tried the new syntethic jet oil from Deluxe Materials yet?

Jannica
Sweden

skymaster68

My Feedback: (4)

I wanted to ask the same, suscribed....

jetpower

I have 2 liters orderd from lindlinger.at
my question is i have some left over fuel with regular turbine oil in the tanks and uat
can the power model jet oil be mixed with the leftover fuel?
regards
Peter

Jannica

Good question. I would also like to know that.

Jannica

Dave Wilshere

Yes, you should have no issues mixing the fuels to use up remaining fuel. The base fuel is the same and oil percentage.

I sent the samples to JetCat and they approved it. I’ve not got anyone around me using it yet, but expect people to start soon as getting std turbine oils is becoming more difficult.

Jannica

Thank you for that information Dave!

Jannica

David Gladwin

I must disagree with that.

In my airline days we changed the oil type, brand, for our RB211s . I cant remember the oils we used changed from/to ( Aeroshell to or from BP, I think) but we were advised not to allow oils to mix. I understood they could react with each other in some way. Perhaps our engineers or RR were being overcautious, as the engines were ETOPS , or it was some certification issue, dont know.

I will certainly try some of this oil, but will not allow it to mix with my standard oil, Turbonycoil.

Your choice !

Incidentally, I lifted some JetA1 from our flying club last week, the price has crashed to just 49 p per litre, half that of last year.

Dave Wilshere

Completely different application, I tested mixing fuels with three different turbine oils in glass jars and left to see if they separated. Nothing I could detect.
Since turbine oils were not designed to be mixed with Kerosene and burnt the way we do there has always been a question. It’s why I would never use Aeroshell 500, doesn’t mix very well.

David Gladwin

[QUOTE=Dave Wilshere;It’s why I would never use Aeroshell 500, doesn’t mix very well.[/QUOTE]

Well, yes and no !

I understand some manufacturers do not recommend ASTO 500 because of deposits on the bearings.

I have. a Xicoy X45 and JetsMunt 100, NO 500 according to Gaspar.

I also have an AMT Pegasus and Olympus and 500 IS the recommended and supplied oil and these engines are approved for fullsize gliders.

Opinions seem to vary, not least between Gaspar and Bennie, both top class engineers producing superb products !
PS:

JetCat recommended oils: Jetcat oil. Aeroshell 500, Exon 2380
Wren recommened oil includes Aeroshell 500.
PST recommended Oil includes Aeroshell 500.

I have used a lot of ASTO 500 in the past, mixes well and one Of my two PST 1300 has over 50 perfect hours logged.

F900

My Feedback: (2)

RR didn't want Airlines using non-PMA oils, same with the engine oil filters... I would never mix oils your just asking for trouble.

Dave Wilshere

I checked with the Chemist who formulated it...he does not see a problem mixing. He’s going to test it with all the popular oils over the next week to conclusively have results.

Dave Wilshere

FYI people.

Dave Looking at the discussions on RC forum, the issues have been about mixing bulk oils as they might be done in full size . Not a good thing, not because of risk of a reaction, but invalidation of approvals. Rare to get an incompatibity issue in the bulk though as most responsible oil makers like SHELL/BP will not allow that to happen .

Castor and mineral are the classic cases of incompatibity (or mineral and polyglycol simply don’t mix) and but these are really never good enough for the model turbines due to poor high temperature stability .

I will put some of this know how on line at some point when I’m back or you can .

The Swedish modeller can buy from our Swedish distributor Model Craft in , MALMO.

John

Horizon are the US distribution outlet.

Jannica

Copy that!

Jannica

jetpower

Hi Dave
if i read it correctly you have to drain the tanks and uat?
Regards peter

Dave Wilshere

Peter

No, he agreed with me you can mix no issue

Dave

jetpower

Thanks Dave

SteveE

Guys, I have just had confirmation from the chemist aka John that he has completed various tests mixing a number of different ratios of various oils together at controlled temperatures, even at low temperatures no issues have been observed.
The conclusion is there is no requirement to flush the system on moving over to the Power Model ​​​​​​ Jet Oil.
I have mixed up my first 60 litres and will use this weekend. As a side I welcome the smell and the oil is coloured green so you immediately know you have fuel that contains oil.
Steve

Jannica

I tried the new oil today. Works fine! Left some 100 cc of old fuel/oil mix in the system with no issue.

Jannica
Sweden

PILOTMD11

My Feedback: (19)

Hi Dave,

Do you know when Horizon Hobby USA will be ready to ship Power Model Jet Oil packaged in Quart and Gallon containers here in the USA?
Also, will Kingtech approve it for warranty Purposes with their turbines?
I’m ready to start buying in gallon containers like Kingtech Oil.

Thanks,
Chris

Dave Wilshere

Chris

i think they should have it now. Only qtr 1ltr bottles for now. We all mix 20 Ltr bottles, so add one and fill.

If KT have approved it the warranty should be good

Dave

Dave Wilshere

These were the latest tests.

David Gladwin

Great news, and REAL testing by someone who clearly knows his subject, not just opinions.

Good to see. mixing is OK too, in the fullsize world definitely a no -no, I dont know if its a chemistry or certification problem.

I have followed the Aerotoxic syndrome in great detail after I and my close friend both lost our licences after flying the RR powered 757. Mine was not a definite diagnosis but John’s certainly was and his symptoms were very significant and visually obvious.

The culprit is organophosphates present in MOST gas turbine oils as a load bearing additive. The one exception is TurboNycoil which I have been using for some years and is a turbine oil used extensively by the US Navy and is approved for use in many gas turbine engines.

Individual sensitivity varies greatly , one BA pilot has died believing OP s to be the culprit.

So, having seen the results, even if for no other reason that is free of OPs I would strongly encourage the use of this new oil, the individual risk from OPs is small, but now easily avoidable.

HarryC

My Feedback: (1)

Just a small thought about fuel oil ratios, since the deluxe materials mixing test data mentions a 20:1 mix, and a friend recently queried why I mix 1 litre oil with 19 litres kero instead of 20 litres kero. Mix ratios can easily be misunderstood.
A 5% mix is 19:1, not 20:1.
20:1, or 20 to 1, is not the same thing as 1 in 20 (5%). A 20:1 kero: oil mix means 1 oil in 21 total, not 1 in 20 total. 20 kero:1 oil is an oil ratio in the total fuel of 4.7%, not 5%. That is a reduction of 6% in the amount of oil, though I would be surprised if an engine is so critical that it is damaged by such a small reduction!
For those who use a 4% mix, it is 24kero:1oil, not 25 kero.

geneh-RCU

My Feedback: (6)

Does anyone still use Mobil DTE lite? I have heard that this does not cause health problems like turbine oil. So Horizon Hobbies is carrying this new oil here in the states? Anyone have a link to it and what is the price?

Dave Wilshere

Turbines are not that fussy on ratios, 4-5% is fine. More than 5% is not ideal