synthetic vs castor fuel - RCCanada - Canada Radio Controlled Hobby Forum
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Old 01-07-2007, 03:22 PM   #1
Friesen 5
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synthetic vs castor fuel

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Can anyone provide information or point to information regarding the advantages and disadvantages of synthetic and/or castor oil fuels?

Mervin Friesen
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Old 01-07-2007, 04:28 PM   #2
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Castor leaves a varnish inside and usually the outside, which protects the metal better from corrosion and wear. This may gum up the engine over a long time, but can be cleaned out.
Synthetics at least what is in our commercial fuels leaves a cleaner looking engine, but the oil can wipe right off metals and they may corrode and wear faster.
Castor in a four stroke can varnish/gum up the valves after time so usually not recommended to run a lot of castor in a 4s.
Most fuels use a mix of both, to get the advantages of both types of oils.
Myself, i use morgans omega, which is 70 syn / 30 castor mix.
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Old 01-07-2007, 06:03 PM   #3
michel gravelle
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I don t remember what form exactly but there was a thread on exactly that subject and it was very informative Some time back in December , you just have to find it

Michel ( Mike )
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