at 60 mph the 2010 corolla s turning 2400 rpm at 60 mph in top gear.
if she was in 3rd my guess is it was turning about 4000 rpm. should have
not hurt it . think it red lined at 6000 rpm .
if you want to know what it was turning for those 30 minutes put it
in 3rd drive at 30 mph , see what the tach says, then double it . that
is what it was turning for those 30 minutes . those corolla engines are
pretty tough. have a 97 sence new with 105000 miles never a problem,
just do oil changes tire rotations, brakes and so fourt . changed one
tming belt .