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

brown Stuff?

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Old 06-21-2002 | 05:31 PM
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From: Patchogue, NY
Default brown Stuff?

I just got a new os 70 4 stroke and have run just over 1 gallon on it and now it looks like CRA*! It's got this brown baked on caster all over the header and muffler. I use BRYONS fuel with caster. First how do I remove the brown stuff? Second what fuel can I run that woun't leave more brown crud?
PS my first 4 stroke and I love it!!!

RickC2009
Old 06-22-2002 | 02:34 AM
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From: Marcellus, NY NY
Default brown Stuff?

Rick,
On the Island, S&W should be available. They have some blends with very low castor and they have all synthetic blends as well.

A little castor is a good thing in a 4-stroke. Helps keep the bearings from corroding and provides an extra measure of protection to the rod journal. You only need 2% castor to offer you those benefits with the remainder of the oil bieng synthetic.

That's not too much castor where everything starts getting gummed up, a little staining yes, gummed up no.


Fuelman

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