Re: Fuel

Yep, Super Tigre G51 with 25% all castor and running in a full 4 stroke the entire flight. It's only done about 30 hours of running so there's only slight discolouration but maybe in another hundred hours or so I might give it a clean :) Possibly this is because in Australia we're lucky enough to have Castrol M which is about the best castor you can get.

Brian Hampt> Ever flown CL stunt?

Klots is one of the better ones. Specifically why don't you trust it?

If you really want some good oil, call FHS and get some of their synthetic oil.

I don't trust straight Klotz (or any synthetic oil) because it seems to thin out too much when the mixture is too lean, and things get a little too hot, and seems to leave the metal unprotected. I remember looking into the exhaust port of our unmuffled engines and seeing the piston cleaner than any piston ought to be, like freshly machined metal, and seeing too dark and gray exhaust oil, that raised my suspicions. Castor, on the other hand leaves a glaze of varnish on the meal when this happens, coating and completely protecting the piston. In theory, the varnish is a problem in its own right, but in my life I've never had to remove any. This is anecdotal evidence, admittedly, from my free flight years, when Klotz had just replaced the preferred Poly Oxide oil, 1971 or 72, but castor does such a good job, and is so much cheaper, why not use it? And by the way, what is FHS?

Paul Mc> Klots is one of the better ones. Specifically why don't you trust it? >

Joe L.

Joe L.

FOR HIGH SPEED,execellant oil and fuel, been using it for 15 years.

It is the only oil I was using after Excalibur cloes up a while back. 40% nitro, 20% oil and balance methol. The YS loved it!