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OS55HZ Hyper Break In

Old 04-16-2014, 06:03 AM
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daskip87
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Default OS55HZ Hyper Break In

I just purchased a new OS55HZ Hyper engine with a new Power Boost pipe for my 600N and had a break in question. I have been running 15% Cool Power fuel in my OS50 but am planning to run 30% in the new engine. I have a gallon of the 15% left and was wondering if I could use that for break in then switch to the 30%?
Old 04-16-2014, 06:57 AM
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Bax
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You can, but you'll still need quite a bit of running on the 30% to get the engine to "come in". It's best to break it in with the fuel you'll be using, especially since the fuels are radically different. 30% heli fuel is a lot "hotter", and usually has a different oil package than a 15% fuel. Needle settings will be very different between the two fuels, too.
Old 04-16-2014, 06:59 AM
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daskip87
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Ok. I guess I will just start with the 30% then. Thanks for the reply.

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