  In his study of tidal stabilization of fully relativistic neutron stars
Thorne showed that the fully relativistic expression for tidal heating is the
same as in non-relativistic Newtonian theory. Furthermore, Thorne also noted
that this tidal heating must be independent of how one localizes gravitational
energy and is unambiguously given by that expression. Favata calculated the
tidal heating for a number of classical gravitational pseudotensors including
that of M$\o$ller, and obtained the result that all of them produced the same
(Newtonian) value. After a re-examination of the calculation using the
M$\o$ller pseudotensor we find that indeed this pseudotensor gives the desired
result under the condition that the mass $M$ is a constant, while Favata
considered $M$ as being time dependent, which is illegitimate since it violates
the harmonic gauge condition, which he used. Moreover, we carry on to consider
this M$\o$ller pseudtensor even in a black hole situation, i.e., beyond
Newtonian physics.
