Thread: Ural Owners
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Old 04-18-2013, 08:28 AM   #198
RidingDonkeys
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Quote:
Originally Posted by FR700 View Post
May want to think about that some more.


http://engineering.mit.edu/live/news...emiumgrade-and
Yeah, I probably should have worded that better. Higher octane fuel burns slower and is less affected by higher temperatures. Any pre-ignition is going to make an engine run hotter. Hence why I tend to run premium in summer, where traffic and temperatures alone can be bitch on an air cooled engine. I don't typically any signs of preignition, but I also don't want to take the chance if I'm on a long ride in the summer.
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