Boston's population density is 2200 per square mile or 800 per square kilometer. Also, perhaps surprisingly, Philadelphia is the least dense urban area in the world with more than 5 million population, while Chicago is the least dense urban area of more than 7.5 million.
Cargo fuel tanks shall not exceed 150 gallon capacity per vehicle. Vehicle transporting fuel in cargo tanks of 115 gallons or more shall display either a hazardous materials placard indicating identification number NA 1993 for diesel fuel or a placard indicating 'Fuel Oil'. When empty, the placard shall not be displayed.
Small Engine Fuel Storage Tips. Gas will become stale if you are storing your lawn mower or power equipment for more than 30 days. Stale fuel can cause engine damage from acid and gum deposits forming in the fuel system or carburetor. Damage to the carburetor or engine due to bad fuel will void the engine warranty. Keep lawn mower gas fresh by using Briggs & Stratton fuel stabilizer, specially designed for small engines. With fuel treatment, you donât need to drain costly gasoline from your small engine to safely store your equipment.