Heating oil and diesel are up 16 cents a liter and gas is up five cents a liter. The maximum price for furnace oil is now $ 2.04 per liter, a record high for Prince Edward Island. Diesel is $ 2.50 a liter, also a record high for PEI, and gas is at $ 1.85 a liter, just below its peak in March. This is the second price increase in two days. IRAC raised prices on Thursday morning in an unscheduled review.