Which Heli Fuel is best?

[Raisintoe]

I flew my Heli today, and the engine got pretty hot; I did have the engine running at high speed, but I also was using my airplane fuel. ;(Cool Power 15%). I was wondering what the difference is between the regular Cool Power Fuel, and the Heli Cool Power fuel. I looked it up on Tower Hobbies, and they both show a 17% lubricant content. But the Heli Fuel lubricant says that it is ultra high viscosity. What is the difference really? Is this a good fuel to use when running the engine at high speeds? Or should I find a fuel with higher lubricant content?

[1BADAIR]

heli fuel and tune it

[Bob O]

I would use a heli fuel for sure. 23% oil works good for me. Currently using CY Wildcat, had been using Rapicon before that, and Rotor Rage prior to that.

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[Raisintoe]

Yes, I will use the Heli fuel; I forgot to mention that I have the Cool Power Heli fuel also, but I don't know if the 17% lubricant is enough.

[Bob O]

I'd have to say no on an oil content that low. 20% oil should be considered minimum IMO.

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[Raisintoe]

It looks like I have to go with a higher nitro content in order to have a higher oil content, is that always the case? I went and bought the 30% Nitro Cool Power fuel, which looks like it has 30% lubricant as well. I was just using 15% nitro, which was also half the price of the 30%

[Bob O]

Originally Posted by Raisintoe

It looks like I have to go with a higher nitro content in order to have a higher oil content, is that always the case? I went and bought the 30% Nitro Cool Power fuel, which looks like it has 30% lubricant as well. I was just using 15% nitro, which was also half the price of the 30%

Nitro content will vary within the same brand of fuel, but the oil content should stay the same. Byron Rotor Rage has a 15% and 30% nitro, but the oil content is 21% for both.

On the other hand, looks like Wildcat has a regular "Helimix" fuel with 18% oil, but available in six different nitro content. I use the Wildcat Performance 30%, which has 23% oil.

You would choose the nitro and oil content based upon what type of flying you do, IMO.

[fourbie]

I have Model Technics Bekra 10% and Irvine 10%. Are they both OK for my OS32??

[3DGansta]

for summer hardcore 3d is best to have more oil to keep engine lubricated and cool,now for winter time you can use a less oil base to increase engine temp a bit without having to mess with the needles ,this works well for me

[tailspin90]

20% oil or more......!!!!

[FARRL]

Cool Power 20% has 20 or 23 percent oil .I have used it for about 4 years, it works great

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[Bking1340]

Also using coolpower for about 3 years - started on 15% nitro, then 22% and increased to 30% nitro for increased power need. The coolpower I used also have 23% oil in all the nitro percentages.