Of course, our recommendation is to simply top off your DEF tank each time you refuel. With an average DEF storage of five gallons, you’ll need to replenish DEF only every fourth time you refill with diesel fuel. Assuming that you have a 65-gallon fuel tank and DEF usage is 2.5 percent, you’ll use 1.6 gallons of DEF for every tank of diesel fuel. Since most DEF fill-ups will take place at the same time as you are getting diesel fuel, it’s helpful to look at usage from that perspective. The average DEF tank holds five gallons of fluid, so you would need about seven DEF tank fills per year (one every 7.5 weeks). In this scenario, you would use 1,400 gallons of diesel fuel and 35 gallons of DEF per year. Plastic & Disposable Totes (275 and 330 gal.)Ī: If you use a fire truck in an urban setting, running 7,000 miles annually at 5 mpg, you can expect your DEF usage to be about 2.5 percent of diesel fuel consumption.Increased off-highway demand will drive increased non-road availability over the next few years through various fuel and chemical service providers. The on-highway market has driven massive DEF infrastructure growth in the last few years with over 1,000 DEF pump locations across North America. When stored within this range, shelf life will be greater than one year, and when stored below 65☏, shelf life is extended to 2 years. It is recommended that DEF be stored between 12☏ and 86☏. All hoses, fittings, and storage tanks must be made of DEF-approved materials such as stainless steel, certain plastics, titanium or EPDM rubber in order to avoid chemical contamination of the DEF and expensive damage to the SCR system. However, additional care must also be taken when selecting bulk DEF storage and delivery systems. Each system includes sensors that monitor DEF quality and level as well as heated lines from the tank to the SCR unit to maximize system performance. The SCR system, tank and distribution system on the equipment are all designed to be fully compatible with DEF properties to avoid corrosion, evaporation and contamination. When stored or exposed to extreme temperatures, DEF does not become toxic. While it does freeze at 12☏, it is important to note that frozen DEF does not impact the start-up or operation of the vehicle. DEF is safe to handle and store, non-toxic, non-polluting and non-flammable. As fuel consumption increases, DEF consumption also increases, so it is important to consider the highest consumption rates of the equipment when planning DEF delivery and storage.ĭEF poses no serious risk to humans, animals or the environment, but it is not compatible with all materials. On average, DEF consumption is 3% to 5% of fuel consumption.
![2016 ram 3500 say to service def system 2016 ram 3500 say to service def system](https://uploads.tapatalk-cdn.com/20170927/5bfeca063fba0168114a9ca70b5696fb.jpg)
At this specific 32.5% concentration the solution has the lowest freezing point of all possible concentrations and allows the urea and water to freeze and thaw at the same rate allowing the proper concentration for the SCR exhaust system.ĭEF consumption will vary depending upon the environment, operation and duty cycle of equipment. The 32.5% DEF solution is preferred for use with most SCR systems worldwide due to optimum cold weather performance.
2016 RAM 3500 SAY TO SERVICE DEF SYSTEM ISO
It has high purity requirements - defined by the International Organization for Standardization specification ISO 22241-1, and the American Petroleum Institute. A key ingredient in the exhaust aftertreatment is Diesel Exhaust Fluid (DEF).ĭEF is a non-toxic solution of 67.5% water and 32.5% automotive grade urea and is one of the key elements of the SCR system. Cummins Tier 4 Final engines with >751 hp use Selective Catalytic Reduction (SCR) to reduce NOx in the exhaust.