Team principal Jean Todt said that, even though the move would be allowed under the new engine rule, 'we probably won't (change it).'
The Frenchman told La Gazzetta dello Sport: "The (new) one ... for Malaysia would have to last for the following race in Bahrain too.
"And these are two very hot venues."
By plugging ahead in Malaysia, though, a fresh V10 would be ready to go in April's Bahrain GP.
Todt, however, said he wasn't even sure if the Aus-spec had been damaged in the Albert Park shunt with Nick Heidfeld. -GMM