Nascar Now reported the substance was a brownish color and surmised it could have been rust or something else. They also said Darby reported it may be narrowed down to fuel from Saturday at one of the pumps. >????? I don’t know it sounds weird to me.
XM radio report....... RCR cars had water in their fuel also...and possibly
the 16....someone asked Claire B about Jr’s car at the very beginning & also someone mentioned on air that MTJ made reference to “losing his power” during the middle part of the race.....