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RE: Who's using Mobil DTE light oil? - 9/23/2009 8:10 AM   
JetCatJimmy



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ORIGINAL: Socomon


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ORIGINAL: JetCatJimmy

You can get Mobil DTE here fairly cheap - and they'll ship it to your door.
http://www.mcmaster.com/#2158k14/=3h1b08


Thanks for the link. I just got a gallon sent to my door. They were reasonable about the shipping too - about $6 for the gallon, so the total was $26. Obviously I would have saved money if I had bought 5 gallons, but I wasn't ready to buy that much yet.

How many ounces of this weight oil would I add to 5 gallons to get a 2.5% mixture?

5% of 1 gallon = 6.4 ounces. 2.5% would be 3.2 ounces. So, for 5 gallons - 16 ounces would give you a 2.5% mixture in 5 gallons.

I wrote all this stuff on my fuel can in Sharpie so I never have to do the math again.

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RE: Who's using Mobil DTE light oil? - 9/23/2009 10:40 AM   
BaldEagel



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Status: offline 		One of the strange enomalies of this life and against the trend for everything in the US being bigger, a US gallon is smaller than a UK gallon.

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RE: Who's using Mobil DTE light oil? - 9/23/2009 1:38 PM   
gruntled


 

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quote:

ORIGINAL: JetCatJimmy


quote:

ORIGINAL: Socomon


quote:

ORIGINAL: JetCatJimmy

You can get Mobil DTE here fairly cheap - and they'll ship it to your door.
http://www.mcmaster.com/#2158k14/=3h1b08


Thanks for the link. I just got a gallon sent to my door. They were reasonable about the shipping too - about $6 for the gallon, so the total was $26. Obviously I would have saved money if I had bought 5 gallons, but I wasn't ready to buy that much yet.

How many ounces of this weight oil would I add to 5 gallons to get a 2.5% mixture?

5% of 1 gallon = 6.4 ounces. 2.5% would be 3.2 ounces. So, for 5 gallons - 16 ounces would give you a 2.5% mixture in 5 gallons.

I wrote all this stuff on my fuel can in Sharpie so I never have to do the math again.


Thanks Jimmy - I had the impression from something Eric @ Jet Central had said one time that the ratio was somehow effected by the thickness (or ?) of the particular oil being mixed. I may well have misunderstood what he was saying.

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RE: Who's using Mobil DTE light oil? - 8/30/2011 5:27 PM   
david101


 

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Status: offline 		Anyone still alive here re: turbine oils???????

I can get locally (Michigan) an equivalent oil to DTE light for $51.80 per 5gallons. It is from Petro Canada and is called Super Turbo Flow 32. Oil supplier says it is equivalent. I checked some basic characteristics and it appears to be so. Any one have experience with oil characteristics who can check???????
Thanks for any help.

Dave

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RE: Who's using Mobil DTE light oil? - 8/30/2011 8:56 PM   
KXH121



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Status: offline 		I am curious about any reports from long term Jetcat users as to whether they have noticed any negative effects on any of their turbine parts (from 25 hour scheduled maintenance reports). Ready to make the switch.

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RE: Who's using Mobil DTE light oil? - 8/31/2011 1:30 AM   
david101


 

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Status: offline 		Sent my p60 in at 35 hours for first maintenance. Used Aeroshell oil no issues. Am exploring other oil options. No bad reports that I can remember on this forum.

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RE: Who's using Mobil DTE light oil? - 9/5/2011 2:58 AM   
thebluemax



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Status: offline 		I have read through this thread about using DTE as an alternative to turbine oil.  Everything is referencing the use with turbines, which I understand why, but has any of the DF guys tried using it with glow fuel?  I know the other brands of turbine oil have been mixed with glow fuel with good success. 

My fuel is Wildcat 15% nitro and 18% synthetic oil.  I know the 18% is lower than required so I wanted to boost it up with some turbine oil.  I would like to use the DTE if it is safer to use than the other brands of turbine oil.  This fuel will be used in a Starfire II I picked up.  This is my first jet and the Starfire has an OS91, Dynamax fan with pitot pressure, JMP pipe, and a BVM mixture valve.

A few weeks ago I bought some DTE and put an ounce in my fuel jug.  Today I was looking inside my jug of fuel I did not like what I saw.  I have included a picture of what I saw in the jug as well as the DTE I purchased. Is this normal or is there a compatibility issue? Do you normally get this stuff when using the other brands of turbine oil with glow fuel?  I don't want to run this in my jet if the fuel is now contaminated. 

The jug has been sitting for a few weeks since I mixed it but I don't think it got old or stale that fast. The fuel itself is fresh as it was purchased this past April in Toledo.  I buy it there as there are only a couple of hobby shops around here.  Only one has some Wildcat fuel but not anything for jets.  Plus he is charging over $20 a gallon for what I bought in Toledo for $13. My fuel is kept in an air conditioned basement in the box on a wooden shelf.  So it was also in the dark and not exposed to any light. 

I tried shaking up the jug to see if this stuff would mix up and disappear but it did not.....

Thanks in advance for any info you guys can provide...
Bill 

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RE: Who's using Mobil DTE light oil? - 9/5/2011 3:19 AM   
GSR


 

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Status: online 		It appears that it is not at all miscible in alcohol. stick with two stroke oils that you know that work. Scotty

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RE: Who's using Mobil DTE light oil? - 9/5/2011 4:17 PM   
Meesh



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Status: offline 		No Problems in Kerosene. It stays clear.

Must be the Alky.

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RE: Who's using Mobil DTE light oil? - 9/5/2011 4:58 PM   
thebluemax



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ORIGINAL: GSR
It appears that it is not at all miscible in alcohol. stick with two stroke oils that you know that work. Scotty

ORIGINAL: Meesh
Must be the Alky.



That is what I think it is too.    I will get a quart of BP2380 as that seems to work with glow just fine.  

thank guys for the responses...

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RE: Who's using Mobil DTE light oil? - 9/5/2011 5:57 PM   
juanjulian



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ThinK you are confusing the idea of  turbine engine motors and 2stroke glow fuel engines.

You need a two stroke oil preferably for glow fuel (methanol) and rc use. Should be looking probably for the sintetic  oils used in rc helicopters that are lighter than the normal ones.

Check Klotz oil in their rc page.

Cheers,

Juan

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RE: Who's using Mobil DTE light oil? - 9/5/2011 7:07 PM   
thebluemax



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Status: offline 		Hi Juan,
Thanks for your reply.  I don't think I am confused but being new to jets I definitely could be.  So I do appreciate all the help I can get.   

I saw threads where turbine users are using for example BP-2380 turbine oil for additional lubrication.  I have also seen threads where the D/F guys are using about one ounce of BP-2380 turbine oil in their glow fuel for their OS-91's for addtional lubrication.  I am assuming it is the same oil.

So I thought that since some of the turbine users are substituting DTE for the BP-2380 because of the "cancer risks", could DTE be substituted in glow fuel as a substitute for BP-2380.  From what I can see in my fuel jug that I mixed it does not look like it.

I have been looking into Klotz. My other option is to buy glow fuel for D/F like Wildcat Jet-A. Unfortunately my hobby shop availability is not that good and the ones I do go to, do not carry it.  The other thing is I would like to be able to use the 2 stroke fuel I already have instead of adding another one.   
thanks again..... 






  


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RE: Who's using Mobil DTE light oil? - 9/7/2011 8:26 PM   
flyinfool1



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Helicopter fuel has the highest oil content of any of the glow fuels.
I run 30% Heli fuel in ALL glow engines that I own and have never yet worn an engine out.

I think that as a few have mentioned, you are confusing a "jet airplane" that has a glow ducted fan with a "jet airplane" that has a turbine.
The glow engine does not know or care what is connected to the crankshaft, be it a fan, a prop or a gear. the glow engine just want to keep its piston going up and down, and the crank round and round.

The glow fuel industry is quite mature. most all of the modern fuels are good. If you feel you want a little more lube than the fuel you have, I add 1oz of castor oil to every gallon of glow fuel. I have yet to find a glow fuel that the castor will not mix and stay mixed in. Castor has some real benefits over an all synthetic oil fuel.

As far as adding turbine oil to your glow fuel, turbine oil is made for a different application than what the glow fuel environment is. It may make things worse. Turbine oil is a petroleum product, many of the components in the glow fuel system are not compatible with petroleum products. The turbine oil most likely will damage the silicone fuel lines and the O-rings in the carb. Once the O-rings start to leak and your mixture goes lean, then you burn up the whole engine.


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RE: Who's using Mobil DTE light oil? - 9/8/2011 5:42 AM   
thebluemax



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ORIGINAL: flyinfool1

FWIW
Helicopter fuel has the highest oil content of any of the glow fuels.
I run 30% Heli fuel in ALL glow engines that I own and have never yet worn an engine out.

I think that as a few have mentioned, you are confusing a "jet airplane" that has a glow ducted fan with a "jet airplane" that has a turbine.
The glow engine does not know or care what is connected to the crankshaft, be it a fan, a prop or a gear. the glow engine just want to keep its piston going up and down, and the crank round and round.

The glow fuel industry is quite mature. most all of the modern fuels are good. If you feel you want a little more lube than the fuel you have, I add 1oz of castor oil to every gallon of glow fuel. I have yet to find a glow fuel that the castor will not mix and stay mixed in. Castor has some real benefits over an all synthetic oil fuel.

As far as adding turbine oil to your glow fuel, turbine oil is made for a different application than what the glow fuel environment is. It may make things worse. Turbine oil is a petroleum product, many of the components in the glow fuel system are not compatible with petroleum products. The turbine oil most likely will damage the silicone fuel lines and the O-rings in the carb. Once the O-rings start to leak and your mixture goes lean, then you burn up the whole engine.



I do appreciate all the feedback. Below are links to a couple of the threads I was reading and maybe these will help explain. 

http://www.rcuniverse.com/forum/m_2150346/anchors_2150346/mpage_1/key_/anchor/tm.htm#2150346


Here is another one.  Look at posts 14, 15, 19, 21, and 23
http://www.rcuniverse.com/forum/m_77737/anchors_77755/mpage_1/key_/anchor/tm.htm#77755.

It looks to me like they are talking in these threads about glow engines using turbine oil, not turbine engines using turbine oil.  Larry Wolfe of JHI mentions in the one thread he uses it in all of his fuels including 4 strokes and he sells and flies turbines as well as glow D/F engines. 
    
What is in these two threads is basically what I want to do.  But I wanted to try using DTE as a substitute for the turbine oil mentioned in the threads since the turbine jets are using DTE as a substitute for the same mentioned turbine oil. I now know from my experiment DTE does not mix with glow.  Kerosene for turbines yes, glow for D/F no. 

These threads also talk about adding Klotz or castor to the fuel and I get all that, too.  I think I will go with adding Klotz until I can get the D/F fuel I need when I go to Toledo next year. Unfortunately my hobby shop availability is not that good here and the ones I can get to, do not carry D/F fuel because of the lack of demand. 

Thanks again as I do appreciate everyones help and feedback...




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RE: Who's using Mobil DTE light oil? - 9/8/2011 3:18 PM   
ViperOneNL


 

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Status: offline 		Hi,

I am using Mobile DTE Lite for 4 years now in 2 JetCats and a Wren 44 helicopter without any issues. P70 has been back to JetCat for other issues and was reported spotless clean inside ... i use 5% oil on all and really love it.

One observation is that the first run of the day is always hotter than the subsequencial runs, so it seems the oil is a bit more sticky ...

Cheers,

Mick

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RE: Who's using Mobil DTE light oil? - 9/10/2011 1:45 AM   
flyinfool1



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Status: offline 		I dont know if it matters but those threads are very old 7-9 years old.
There has been changes in glow fuel oil technology since those threads.

You can try to get a sample of the DTE and just put a few drops into a small cup of fuel to test for mixing, rather than contaminate a full gallon for testing.
The local Mobil dealers are pretty good about small free samples.


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RE: Who's using Mobil DTE light oil? - 9/10/2011 5:12 AM   
thebluemax



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quote:

ORIGINAL: flyinfool1

I dont know if it matters but those threads are very old 7-9 years old.
There has been changes in glow fuel oil technology since those threads.

You can try to get a sample of the DTE and just put a few drops into a small cup of fuel to test for mixing, rather than contaminate a full gallon for testing.
The local Mobil dealers are pretty good about small free samples.



Hi Jeff,
Your right those threads are old and there are newer ones out there. I just grabbed those two as quick examples of what I read.  I tried mixing some DTE with some glow fuel and it is definitely not compatible.  So I am looking at other alternatives like Klotz Benol or Klotz Technoplate until I can get some fuel with the right oil content..  

Thanks again for your input.

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RE: Who's using Mobil DTE light oil? - 9/14/2011 12:43 AM   
david101


 

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Just got a 5 gallon pail of DTE lite from my local fuel oil, propane etc supplier special ordered for me. Cost in Michigan was $95 with tax included. No shipping cost if you can get it this way. Will try in my P60 this winter in Az. If you need it try your local fuel oil, etc supplier.

Dave

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RE: Who's using Mobil DTE light oil? - 11/4/2011 4:57 PM   
bigbreeze


 

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Status: offline 		Great thread guys, very informative.

Just wondering what characteristics we are looking for when searching for oils to replace the BP Turbine oils? What are some of the critical characteristics the oil should have?

Are lower Flash Points good?

Is lower Viscosity numbers preferred?

Mobil DTE Light is a little harder to find up here in Canada, but we have plenty of similar oils with similar specs....

Thanks.

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RE: Who's using Mobil DTE light oil? - 11/5/2011 2:57 AM   
david101


 

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Status: offline 		Read my post #79 this thread re:Super turboflow from Petro Canada. According to my oil man it is equivalent to DTE and is about 25% cheaper. I will be using DTE lite and one of my friends will be using the Super Turbo Flow here in Az. this winter.

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RE: Who's using Mobil DTE light oil? - 11/6/2011 7:13 AM   
John H.


 

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Status: offline 		Try using chevron HiPerSYN iso 32 it has a 28 deg C higher flashpoint then Mobil dte light. Very close to Aeroshell 500.

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RE: Who's using Mobil DTE light oil? - 11/6/2011 11:33 AM   
Dr Honda



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Status: offline 		Is anyone using DTE in an AMT turbine? I have enough fuel to get me though a few more flights, and then there will be snow on the ground in PA. BUT... I would like to change over for spring if it's ok in these engines.


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