FREQUENTLY ASKED QUESTIONS

What is DEF?

DEF stands for diesel exhaust fluid, which is an emissions control fluid used to reduce the amount of air pollution created by a diesel engine.

How does diesel exhaust fluid (DEF) work?

The diesel exhaust fluid is sprayed into the exhaust stream of diesel vehicles in order to break down the NOx emissions into harmless nitrogen and water.

What sets Simple DEF apart from our competitors?

The characteristics the customers know and expect from FM Fuel & Resources (formerly Fuel Masters) are the same characteristics we possess. With our new and improved technology, coupled with the “one-stop-shop” for all fuel needs, simple DEF will exceed your expectations.

What is NOx?

NOx is oxide of nitrogen that is released from the engine, which is known to be harmful to our health as well as the environment.

How much Diesel Exhaust Fluid will my truck intake?

The utilization of DEF is estimated as a ratio of diesel fuel that is utilized. Medium and substantial duty trucks have a dosing pace of 2-3%. Which means, if your truck has a fuel efficiency of six miles per gallon and a dosing rate of 3% you will use roughly one gallon of DEF every 200 miles.

What happens if I inhale DEF fumes?

Typically, inhalation is not expected. However, in the event that you are in a small area, it is possible to inhale a small quantity of ammonia fumes. If this happens, move to an area of fresh air. If experiencing abnormal symptoms, your physician should be consulted.

What happens if I ingest Diesel Exhaust Fluid?

This fluid should not be consumed. But, in the event that this should happen, please consult your physician immediately.

How much does Diesel Exhaust Fluid cost?

The cost of Diesel Exhaust Fluid (DEF) is based upon your location, supply method as well as the amount of fluid that you would like to purchase.

Does Simple DEF offer shipping/ delivery?

Yes, we will match the marketplace’s requirements that includes accurate and timely delivery.

If I switch Diesel Exhaust Fluid suppliers, what should I do with the remainder of the fluid?

The tank needs to be as empty as possible before refilling.

Should I wear protective clothing when filling up the DEF tank?

No, wearing protective clothing is not necessary when filling up your tank. However, if you do spill any diesel exhaust fluid on your clothes, rinse it off with water. The tank needs to be as empty as possible before refilling.

What happens if I spill the diesel exhaust fluid (DEF)?

Spilling a small amount of DEF would result in being washed away with water or simply wiped up. Leaving the fluid to dry will create white crystals. If a large amount of fluid has been spilled, please contact your DEF supplier for advice.

What is the shelf life of DEF?

Diesel Exhaust Fluid has a shelf life of two years. If the fluid is exposed to direct sunlight or exposed to a temperature above 86 degrees, the shelf life may be reduced.

Does diesel exhaust fluid evaporate?

Yes, it may evaporate if stored at a high temperature for a long period of time since it is made up of 67.5% water. However, field tests have shown that even in higher temperatures there is no risk of evaporations from DEF tanks.