44 Ill. Adm. Code 5040.550
Gasoline Purchase
Section 5040
Section 5040.550 Gasoline
Purchase
Purchases of fuel, oil, and
related items for the operation of State-owned equipment must be made from the
most economical source. Unleaded gasoline (with ethanol blended in, often
called Gasohol) shall, however, be used where available. Drivers must use E-85
(85% ethanol) and biodiesel when operating flexible fueled and diesel powered
vehicles in the State fleet, whenever feasible.