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RC Fuels Nitromethane, Castor Oil, Synthetic, heli fuel, 4 stroke, etc...Fuel Q&A is here!

Best 4Stroke Fuel

Old 05-06-2009, 02:54 PM
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DSTIEBS
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Default Best 4Stroke Fuel

Hi All: I know you all have your favorite fuel you use but I would like to get a average best to use in my OS FS56a. I need to break it in and can't decide which is best to do it with and searching the forums proves not too successful. What should I use? Thanks.
Old 05-06-2009, 03:43 PM
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ggraham500
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Default RE: Best 4Stroke Fuel

Wildcat 2/4 cycle 20% Nitro / 20% Synethetic oil (also called YS 20/20)
then I add 1.5 oz of Klotz Super Techniplate KL-100 per each gallon of the Wildcat fuel.

http://www3.towerhobbies.com/cgi-bin...&I=LXS622&P=ML
Old 05-11-2009, 07:53 PM
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Iflyglow
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Default RE: Best 4Stroke Fuel

I have run both Power Master 20/20 and Wildcat 20/20 by the cases in YS's, Magnum's and Saito's with awesone results. These two fuels are equals in my book.
Old 05-11-2009, 09:19 PM
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Default RE: Best 4Stroke Fuel

I have used WildCat Premium Extra almost exclusively since 1991 but last season I bought 6 gallons of PowerMaster 15% with 18% 80/20 blend, as David says they are equal in every way. Right now I'm running WildCat 2/4 just to try it out and see how fuel with no castor works.
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Old 05-11-2009, 10:46 PM
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w8ye
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Default RE: Best 4Stroke Fuel

I've used Morgan's OMEGA, Rich's Brew, and Wildcat and they were all about the same.
Old 05-11-2009, 11:02 PM
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Default RE: Best 4Stroke Fuel

I've always run-in my engines in on the same fuel I intend to use during normal operation, seems to have work well for me for the past 25 years. This covers all types of glow engines from Cox .049s through to 1/8th scale off road buggy engines.
Just for sh**s and giggles I ran my enya 46-4C the other day on 80% methanol and 20% castor, ZERO Nitro... peaked an APC 11x6 @ 10700 rpm [X(]
Old 05-12-2009, 07:47 AM
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Default RE: Best 4Stroke Fuel

LR, in 1991 my first rc engine was an Enya .46MKII and for its first two seasons of life I ran it on Fox 15% fuel with 20% castor. I still have that engine. It was on a Kombat 40 with the 60" wing option. Everybody said, "that thing will never fly" well, somebody forgot to tell the little Enya, it flew that plane just fine.
Old 05-13-2009, 12:46 AM
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Default RE: Best 4Stroke Fuel

i have a Katana 40 fitted with an OS 81 /4 stroke and i must say the model flys very well with heaps of grunt for Imac / Aerobatics the fuel mix i was using was 5 % nitro / 20% oil [ coolpower ] i didnt like the performance for 3D stuff mainly hovering so i decided to change the fuel mix to what my Heli runs 20 / 20 and what a difference this made for what i wanted [ Prop Hanging ] before this i tried all prop sizes but the only cure was more nitro . my special mix for this OS 81 is 20% nitro / 15 % coolpower / 5 % castor / finishing with Methanol .

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