Is 95 unleaded gasoline?
1 Answers
95 is unleaded gasoline. Unleaded gasoline is a type of gasoline that does not have tetraethyl lead added as an anti-knock agent during the refining process. The role of lead in gasoline is to prevent knocking. Unleaded gasoline refers to gasoline with a lead content of less than 0.013 grams per liter, but it does not mean the gasoline is completely lead-free. Besides being lead-free, unleaded gasoline still emits three major substances when burned: gases, particulate matter, and condensates, which still pose health risks. Using unleaded gasoline can effectively control harmful substances in vehicle exhaust, reducing pollutants such as hydrocarbons (HC, which causes smog), carbon monoxide, and nitrogen oxides. Vehicles using unleaded gasoline must be equipped with hardened valve seats that do not require lead lubrication on the engine.