A heavy rattle of his fans is the first answer she gets. A moment later, Optimus reaches up to rub at his face; his hand covers his shifts of expression. "...I believe that may have been the worst one," he notes, doing some quick system scans. "The others - given time and fuel - should be able to handle themselves if necessary."

It's a way out, if she's uncomfortable; Allspark knows Optimus knows better than to outright refuse further aid. But either way, he will need some fuel sooner or later, he notes with a frown. There's only so much heavy recharge can help with; new energy will have to come from somewhere.