Gentlemen, does anybody has experience with eco torg engine? I've got offer from volvo dealer. New volvo 670 425hp, 13 speed. Dealer insist that when I'll drive uphills with 46 000 lb load I'll get the same torg like 500 hp engine but I can really save on fuel on flat road. You know dealer say many things to sell truck but I'd be happy to get real story about this engine