Are there any cost saving of commuting from northern NJ to lower manahttan using public transportations?

Question

what I mean is I figured I would put about 13k less miles on my car per year which is what I do now and you save on gas but then you do have to pay for your bus fare and subway.

Answer 1

Public transportation is almost invariably significantly cheaper than driving yourself, even if you are driving a super-fuel efficient car.  When you take into account the wear on your car and the gas, it will come out to much more than the bus and subway fares.

Answer 2

Considering that parking in Manhattan is going to cost you $400 a month anyway, not to mention the necessity of having a $75 unlimited MetroCard, and the $120 a month for the Holland or Lincoln Tunnels, and the $160 a month for the congestion charge that will soon be in effect, spending $400 on a monthly train pass and MetroCard isn't that bad of a deal. It beats the $755, which doesn't even include gas and maintenance.