Thread:Nausiated/@comment-4651179-20130821015033/@comment-61022-20130821022603

As per A-Z Vol 1

Level 4 is ranked as super-human, who are able to lift between 800 lbs to 25 tons. It's divided into three classes: enhanced human which is 800 to 2 tons, class 10 which is 2 to 10 tons and Class 25 which is 10 to 25 tons.

Which is probably intentionally ambiguous to allow for creative license for writers to have some range within "reasonable" limits. I would presume that since his strength is augmented by magic, his strength likely fluctuates due to the nature of magic. But from most of the Ghost Rider stories I've read, John Blaze has never lifted anything heavier than a large vehicle, but I've only read most of the original Ghost Rider run from t he 70s and 80s.