Diesel exhaust fluid (DEF) consists of 32.5 percent high-purity synthetic urea and 67.5 percent deionized water. DEF is slightly heavier than water at 9.08 lbs. per gallon (versus 8.34). ... Most trucks have a DEF heating system to keep the truck running in extremely cold weather.2017-03-02
How much does 275 gallons of DEF weigh?
How much does 330 gallons of DEF weigh?
How much does 5 gallons of DEF weigh?
DEF weighs about 9 lbs per gallon. A typical light duty/medium duty truck will have a tank roughly 3-5 gallons.