Tidal heating from Saturn and Titan's gravitational fields?
Isn't it more likely with tidal heating from Saturn's internal gravity concentrations (the effects of which can be seen in the ring structure) and its flatness and it rotating three times faster than Enceladus orbits? Saturn is 5,000 times more massive than Titan and five times closer to Enceladus.
I wonder how the heating occurs on a pole instead of at the equator, where tidal effects are the greatest on earth?
EDIT: Gaah, you wrote Saturn's AND Titan's gravity field, yes, I agree with that, I only saw titan when I posted this.