4 ms·The relevant comparison is to an equivalent energy battery, not the tank enclosure vs fuel.by fulafel 2y agoThe relevant comparison is to an equivalent energy battery, not the tank enclosure vs fuel.mrWiz 2y agoI think the relevant numbers here (to evaluate the statement "The bus gets lighter and more efficient as it uses fuel.") would be the total weight when empty vs when full.fulafel 2y agoYou're right, I had misparsed the comment.