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HomeRC & Power✈️Aircraft🚁HelicopterEngines Plugs Mufflers Fuel › Cool Power Low smoke difference
05-02-2011 03:08 AM  10 years ago
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wifeorheli

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reno, nevada usa

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Cool Power Low smoke difference
whats the difference between regular cool power and the low smoke other then the obvious. Less oil content? Will it change my tuning? Im almost out of regular LHS only has low smoke. thanx
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05-02-2011 01:41 PM  10 years ago
BarracudaHockey

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Jacksonville FL

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Considering their web site that was actually useful seems to be gone...

Smoke is effected by the oil package so they changed something. As for tuning, when switching fuels it never hurts to open the needle several clicks, maybe even a half turn since we know they are tinkering with the oil, and lean from there, as you wont hurt an engine running it rich.
Andy
AMA 77227
http://www.jaxrc.com
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05-02-2011 01:50 PM  10 years ago
DS 8717

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The low smoke fuel has thicker oil so it smokes less,competition helis use it because they do a lot of hovering manuvers and too much smoke makes the heli hard to see. The lower viscosity fuel gives better throttle response and is better for 3D. dont know if the oil content is less but they say you need less oil if its thicker.With thicker oil you will have to open the needles more because the fuel is thicker.YOU ONLY LIVE ONCE..IF YOU LIVE IT RIGHT THATS ALL YOU NEED
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05-02-2011 05:39 PM  10 years ago
Dr.Ben

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Richmond, VA, USA

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Less oil in the LS product, 18%.

Ben Minor
Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA
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05-02-2011 10:59 PM  10 years ago
wifeorheli

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reno, nevada usa

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so the ls is better for 3d? So the lower oil content cant be good i dont know the smoke doesnt really bother i like it actually but i need a gallon but to have to retune just for a gallon i think i will hold off. 18% is alot
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05-03-2011 12:39 AM  10 years ago
Dr.Ben

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Richmond, VA, USA

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That's not how it works. You can't run a 23% oil content of the hi vis oil that the LS fuel uses. It'll choke the engine to death. In my experience, the hi and low vis fuels run close to the same needle setting. The high vis fuel is thicker which might require a richer setting, but there's less oil by volume which requires a leaner setting. Thus it pretty much averages out. If all you're talking about doing is getting by for a gallon until you get the low vis product, then I would wait since there is a bit of a learning curve to the way the LS needles and sounds in flight even though the settings don't change that much. It's more apparent the hotter the weather and when the LS fuel is used in OS engines.

Ben Minor
Peak Aircraft/Team Minicopter Team Futaba Team Kontronik USA
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05-03-2011 01:10 AM  10 years ago
Jerry K

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Houston Area

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With thicker oil you will have to open the needles more because the fuel is thicker.
I would be willing to bet there is no difference in the viscosity of the two fuels.

First of all the low smoke uses a higher viscosity oil but uses less of it 18% vs 23% so those two would balance out.

And a difference of 5% oil content probably will not change the total viscosity of the fuel much when it comprises around 20% of the volume. That equates to a 1% change if looking at the entire volume
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05-03-2011 04:00 AM  10 years ago
Jim Woodward

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Boca Raton, FL

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In the worst heat of summer the regular 30% heli blend is my preference for the YS .91 2-cycle and the 170 4-cycles. I feel the engines run just a bit more consistent and cooler on the regular blend. Because of this I use it all the time now.
Thanks,
Jim
Team Futaba
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05-03-2011 04:19 AM  10 years ago
wifeorheli

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reno, nevada usa

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interesting information. I think i will just wait
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05-03-2017 06:00 PM  4 years ago
Mputu

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Belton, TX

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Just catching up on this now that I have to use LS fuel. My question to you all used or still using LS fuel, is there any issue so far with LS since your last conversation?Fly hard, Land safe
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HomeRC & Power✈️Aircraft🚁HelicopterEngines Plugs Mufflers Fuel › Cool Power Low smoke difference
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