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Wildcat 2&4 stroke 15% for break in

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Old 07-15-2012, 02:36 PM
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acdii
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Default Wildcat 2&4 stroke 15% for break in

Iread the manual for my Magnum and it said to use a castor/syn mix for breakin. Ihave Wildcat, and after breaking in the engine on it, found out it doesnt have castor in it, 18% Klotz synthetic instead. Should I be concerned? I have been using Wildcat 15 in my OS and it has been running fine.
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Old 07-17-2012, 11:56 AM
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Default RE: Wildcat 2&4 stroke 15% for break in

It's too late to change what has already been done. If the engine runs correctly, and does not overheat, all is well. One of our club members had a Mag 52 that never ran right with full synthetic. Even though it was not running lean it acted like it was overheating. He switched a fuel with some castor and it started running correctly.
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Old 07-18-2012, 05:07 AM
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Default RE: Wildcat 2&4 stroke 15% for break in

Well, my worries are moot. I had my first flight with the T-34 and Magnum last night, temps in the 90's, full cowl on, and the engine ran fine, and was not hot when I landed after a 10 minute flight.  I was a bit concerned with cooling, but it appears I have enough exhaust openings to keep it cool. I was able to touch the motor without burning myself, it was warm enough that it would hurt if I kept my finger on it, but not sizzling hot.  Engine is running great.  A few more tanks through it and I can start tweaking the low end for better transitions, and the high end for more speed.  So far I have no complaints about the Wildcat I am using. Both my OS and Magnum are running fine. My friends are using it in their planes and running fine too.  I guess they use pretty good lube in this fuel.
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