Heat is not normally ever the culprit of breakdowns but maybe Mr Althoff will grace us with his brilliance once again here..Most have shutdown due to a mechanical reason..
IE: Maggys inablity to see the darn Blue train this year!! Wouldn't be surprised to see that pulled off for a bit soon to fix that sensor problem
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http://www.msu.edu/~armbrus9/cp.html mf laps = 100! No More No Less!!