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RE: Is Cool Power cool fuel? - 3/25/2009 7:22 PM   
rageman


 

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Status: offline 		I recall reading a recommendation to, at the end of the day, run some straight Methanol at low speed to "wash out" the nitro, which is corrosive, then to be followed by after run oil.

Would that not also flush out some of the caster oil residue and slow the accumulation rate of caster varnish build up?

Or would the straight methanol also require addition of oil even if run at low speed load conditions for a short period?

Comments?

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RE: Is Cool Power cool fuel? - 3/26/2009 1:52 PM   
downunder



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Status: offline 		What's meant is to run a fuel with just 80/20 all castor mainly to ensure everything gets a liberal coating of castor as a rust preventative if the normal fuel doesn't have any castor in it. The engine should then be stopped at full throttle by pinching or removing the fuel line so it can sweep up any excess methanol out of the crankcase.

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RE: Is Cool Power cool fuel? - 3/28/2009 12:18 AM   
Fuelman


 

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quote:

ORIGINAL: controlliner

To fuelman,
Do you know of anyone who has used olive oil instead of Baker AA castor. Sucessfuly.


Not to my knowlege.
Why would you want to anyway?
There was a couple of published tests performed by Dave Gierke about 20 years or so ago with various oils. Of particular note was using soybean oil as the only lubricant in a fuel. His findings were that it would run fine, but hard black carbon quickly grew on the piston and combustion chamber and plugs fouled out. This is why you do not see vegtable / seed oils (other than castor) used in fuels.


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RE: Is Cool Power cool fuel? - 3/31/2009 4:51 PM   
wcmorrison



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Status: offline 		Roger that! The debate rages on. Meanwhile us old users tend to always have some Castor in the mix. Works for me. Occassionally, I get some Morgan's Cool Power and I doctor it up with some good old SIG Castor to a level of 20% total oil in the mix.

Never forget buying some fuel from a well known, even internationally known hobby shop, and they had run out of "four stroke" fuel. The owner said just get the two stroke stuff, it was the same thing with a different label. I checked, he was right.

Cheers,

Chip

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RE: Is Cool Power cool fuel? - 5/20/2009 6:51 AM   
freeair


 

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Status: offline 		i have just stripped down 2 engines  [ OS 46 AX  /  TT PRO 46 ]   firstly these engines are not very old and have approx 4 litres of fuel through then at the most.     the fuel that has been used is Coolpower blue color at 20%  with only 5 % nitro ,     after removing the backplates i firstly noticed RUST on the crankshaft rear plus rust on the bearing .    this really amazed me as i,ve allways run the engines out dry after flying plus added a slight amount of after run oil ,   years ago i only used Castor based fuels and never had this problem except for tight bearings after the engine was sitting for some time but it looks like now is the time to revert back to castor based fuel plus used the good old auto transmission fluid as after run oil while sitting idle.   so if in doubt how your engine really is ,  remove the backplate and take a peep.

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RE: Is Cool Power cool fuel? - 5/22/2009 9:37 AM   
fliteofthenavigator


 

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Status: offline 		In regaurds to your question. Nitro methane. And  all  types of alcohal are very corrosive and are not a lubricant. That is why they add lubricants to our fuels. And we use after run oil to break down or remove the corrosive fuel we just used. Even your fuel lines should be flushed out or they will be damaged over time. Alcohal evaporates quickly and because of it's corrosiveness it breaks down the oils (lubricant) and takes them with it. This leaves a clean surface in our case different types of metal and if any moisture is exposed to it will rust. I won't explain why that happens you'll have to google it. LOL! I have yet to see any of my engines develop rust but it is possible. Clean when your done and leave a protective coating in anything that is exposed to that nasty fuel we use. It doesn't matter what your brand is it's all corrosive! I'm going to give you a little secret (after run oil company's will hate me). But I use WD-40 to flush out my systems after flight or drive, it's cheap and works great. Think about it ,what is WD-40 anyways. It stands for (water displacement solution # 40). It's mostly made of fish oil, a great lubricant and it displaces water ie moisture. This is a little extreme but you can run acid through your fuel system and if you flush it out your ok. The idea is don't let it stay in the system, the longer it is there the more time it has to break down and destroy what it is in contact with. Always clean and protect after fuel with corrosive properties have been exposed.

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RE: Is Cool Power cool fuel? - 5/22/2009 2:03 PM   
controlliner



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Status: offline 		Alcohol is NOT corrosive, it is "hydroscopic". It is the water that the alcohol attracts, that causes corrosion. WD40 has no fish oil, look at the MSDS
http://www.wd40company.com/files/pdf/msds-wd447382569.pdf

< Message edited by controlliner -- 5/22/2009 2:12 PM >

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RE: Is Cool Power cool fuel? - 5/23/2009 2:14 AM   
Luna_Rendezvous



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quote:

ORIGINAL: controlliner

Alcohol is NOT corrosive, it is "hydroscopic". It is the water that the alcohol attracts, that causes corrosion. WD40 has no fish oil, look at the MSDS
http://www.wd40company.com/files/pdf/msds-wd447382569.pdf


Alcohol...

not corrosive?


Methanol is corrosive according to the "Wiki" end of first pargrph under "Fuel for Vehicles"   http://en.wikipedia.org/wiki/Methanol

Regards,
Mike.



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RE: Is Cool Power cool fuel? - 5/23/2009 5:44 AM   
anuthabubba


 

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Not from the ever reliable wikipedia but:

What materials are compatible with methanol?
Pure methanol is non-corrosive to most metals (not including lead, magnesium and platinum) at ambient temperatures. However, coatings of copper (or copper alloys), zinc (including galvanized steel) or aluminum are attacked at high temperatures and more slowly at ambient temperatures. Stainless steel and carbon steel are typically used in Methanex plants.

Plastics are generally not recommended for storage purposes due to long-term deterioration of the material and the subsequent risk of methanol contamination.

Many resins, nylons and rubbers, particularly nitrile (Buna-N), ethylene-propylene, teflon and neoprene are used satisfactorily as components of equipment in methanol service.

Terry in LP



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RE: Is Cool Power cool fuel? - 5/23/2009 2:56 PM   
controlliner



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Status: offline 		Alcohol will have an effect on the said alloys due to a catylic reaction, not a corrosive reaction.

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RE: Is Cool Power cool fuel? - 5/23/2009 9:54 PM   
freeair


 

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Status: offline 		its the Nitro content in the Methanol mix that does the damage .

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RE: Is Cool Power cool fuel? - 5/23/2009 11:08 PM   
controlliner



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Status: offline 		Actually it is not the nitromethane that does the damage, it's the acidic byproducts left behind from the nitro that has been burned.

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RE: Is Cool Power cool fuel? - 5/28/2009 2:21 AM   
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Status: offline 		I like Cool Power. I alternate between syn/cas and all synthetic. The syn/cas provides castor protection, and the all synthetic cleans out  excess cooked on castor. All my engines are happy!

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RE: Is Cool Power cool fuel? - 5/28/2009 2:24 AM   
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Status: offline 		Nitro gets its name from the nitric acid used to make it.


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RE: Is Cool Power cool fuel? - 5/28/2009 2:35 AM   
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Status: online 		 guess what remains after you run the fuel in your engine?


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RE: Is Cool Power cool fuel? - 5/28/2009 9:06 PM   
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Status: offline 		hi started out  20 years ago-used omega cool power (green ) pre mixed  bought at the hobby shop- i rebuild and replace bearing or anything else requiredi found a lot of wear on all  moving parts of my engines-the glo fuel tanks would get a nasty green coating i also did not like-as i did not empty my tanks-just plug them shut always running out my engines and using using an after run mix of trans fluid and mystery oil -rust was  an issue- for the first year i ran the green fuel-  started to think the hobby shop owner wanted to sell more enginesthe new hobby shop owner started to recommend using omega  pink-a 80/20 mix of syn and castori no longer see the excessive wear i used to and my engines just run better over all- for the last 19 years-thats proof enough for me you need castor oil in the fuel  if you are inside your engines alot - as i amseeing the wear  will sway your thinking to castor oil

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RE: Is Cool Power cool fuel? - 5/28/2009 11:22 PM   
Jim Thomerson



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Status: offline 		Here is a good read on castor oil.   http://www.go-cl.se/castor.html

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RE: Is Cool Power cool fuel? - 5/29/2009 4:04 AM   
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Status: offline 		The plane I bought came with an OS 25FP and the tank clearly had Cool Power stored in it. It could be just a coincidence but I had to replace the piston and liner in that engine even though it appeared to be well cared for. 


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RE: Is Cool Power cool fuel? - 5/29/2009 8:24 AM   
freeair


 

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quote:

ORIGINAL: controlliner

Actually it is not the nitromethane that does the damage, it's the acidic byproducts left behind from the nitro that has been burned.
  so you say its not the nitro but the acidic byproducts left behind by the  ?   so who is the culprit ?


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RE: Is Cool Power cool fuel? - 5/29/2009 8:57 AM   
freeair


 

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Status: offline 		yes i feel to agree with Tony0707 on this oil issue.    by adding atleast 20% of good quality Castor to your Synthetic oil such as 20 castor and 80 synthetic  atleast you have good confidence that the engine has some good lube that will stay on the needed parts.

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RE: Is Cool Power cool fuel? - 5/29/2009 3:31 PM   
w8ye



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quote:

ORIGINAL: freeair


quote:

ORIGINAL: controlliner

Actually it is not the nitromethane that does the damage, it's the acidic byproducts left behind from the nitro that has been burned.
  so you say its not the nitro but the acidic byproducts left behind by the  ?   so who is the culprit ?



The nitro is the culprit



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RE: Is Cool Power cool fuel? - 5/29/2009 4:30 PM   
controlliner



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Status: offline 		I never use after run oil in any of my engines, (car, boat, plane) I have been using cool power and Omega for almost 20 years and I never had an engine rust on me. Nitro alone will never rust an engine. It is the nitric acid left that will rust. Morgan fuels say on the bottle to not use "ARO" and I have never used it. I believe that if you follow their recommendation and if your engine rusts, they will help you.

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RE: Is Cool Power cool fuel? - 6/6/2009 1:34 PM   
haroldpo6


 

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Status: offline 		How much castor do I need to add to a gal of 15% green cool power to have about 20% oil?

Never mind, I found a chart that says 3.1oz

< Message edited by haroldpo6 -- 6/6/2009 1:41 PM >

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RE: Is Cool Power cool fuel? - 6/6/2009 3:29 PM   
Jim Thomerson



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Status: offline 		A gallon is 128 fluid ounces.   So one percent is 1.28 fl. oz.  and  5% is 6.4 oz. Don't believe everything you find on the internet. 

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RE: Is Cool Power cool fuel? - 6/6/2009 4:42 PM   
haroldpo6


 

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Status: offline 		The 15% is nito. I think the oil is 17% syn.

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