The Iran war has raised gas prices about 33 percent in three weeks, adding nearly $1 to the average gallon. This week, the nationwide average gas price hit $3.91 — the highest in a

The Iran war has raised gas prices about 33 percent in three weeks, adding nearly $1 to the average gallon. This week, the nationwide average gas price hit $3.91 — the highest in almost four years. See how much your car model is costing you at the pump