Gidday,
I'm considering brewing my own fuel, I've always used 80/20 methanol/castor, I have no objection to synthetic oils, but then I'm happy with castor as well, so either is fine by me, so long as any alternative to castor has some track record of being suitable for model aircraft use.
Do any kiwis know of any companies that will supply the required ingredients for retail sale? I haven't managed to find any castor oil apart from in small quantities for medicinal(?) use, so the cost doing it that way makes no sense. I have read Castrol R30 is a castor based oil, but supercheap have it for $30 per litre so that makes no sense either! Methanol I expect will be less difficult to find.
The local club sells straight non nitro fuel for $8 per litre, if that's about as good a price as can be done I'm happy to pay it and support the club, if I can do it myself for significantly less I'd like to brew my own. Currently my models are all .20 to .40 size, but if I'm going to go much larger it's worth investigating alternatives that can save some $.
By the way I'm in chch, local would be even more useful!
Thanks.