Is there an additive for DEF fluid?
Do not add antifreeze to DEF. It is not recommended to add any sort of additive to DEF to prevent freezing, as this will prevent the fluid from performing as designed. DEF is a mixture of 67.5% de-ionized water and 32.5% purified urea.
Will a diesel engine run without DEF fluid?
Modern trucks will not run without the DEF. Hence the need for diesel truck owners to check their fluid levels frequently. Reducing emissions should be everyone’s goal. Maintaining your vehicle would also reduce emissions and DEF consumption.
Does deleting DEF system void warranty?
Deleting would void the powertrain warranty, so, engine, trans, transfer case, drive axles, etc would lose warranty.
How many miles does DEF fluid last?
DEF consumption is directly related to fuel consumption. A truck averaging 6 MPG can expect to go approximately 300 miles on one gallon of DEF.
What does Def stand for in diesel exhaust fluid?
• Ford DEF bottles include a filler spout designed to aid in the filling of Ford specific systems. Diesel Exhaust Fluid (DEF) GSB Ver. 2.0 Diesel Exhaust Fluid (DEF) Service Tips DEF System Overview Ford Motor Company August 2015 4 of 17 NOTE: This chart represents the average distance between DEF refills based on how the vehicle is operated.
Can a diluted diesel exhaust fluid cause SCR?
It is very easy to forget about the DEF sitting in the back of your truck and given an extended period of hot days the fluid can become unstable and decompose but at a very minimal rate. A diluted DEF without the mixture of 32.5% urea can be damaging to DEF and SCR but cases of that happening are rare.
Where is the date code on diesel exhaust fluid?
Most likely it is on the front of the package near the bottom. This date code will tell the exact date the batch was produced and subsequently the age of the bottle of DEF. One gallon containers have a laser code imprinted on the bottle.
When does Def combine with NOx exhaust fluid?
The answer is yes and no. The temperature at which DEF combines with NOx exhaust right out of the cylinder head with the valves wide open is between 1400-1600 F. The chemical reaction takes place at much hotter temperatures than on a hot sunny day.