DEF question
Hey I am still in my learning phase of about diesels to see if I want one for my next truck let alone need one. I am here in SLC I currently drive a company vehicle. I see where DEF goes bad in 100+...
Forum Discussion
brooks379 wrote:
Impact on the quality of DEF per Transliquid technologys LLC
Q. What is the shelf life of DEF? A. The shelf life of DEF is directly related to the ambient storage temperature. DEF will degrade over time depending on temperature and "exposure to sun light". If stored between 10 and 90 deg F, shelf life will easily be one year. However, if the maximum temperature does not exceed approximately 75 deg F for an extended period of time, the shelf life will be two years.........
IMO....If you don't drive it much don't fill it all the way just put in a gallon at a time so you're always running good def.
I agree. I will never top mine off again. I had a few issues, from here on out it will be 2.5 gallons max when it show low. My truck goes about a 1000 per gallon of DEF. They only way I would top it off is if I was leaving on a long trip and even then not really necessary and you can get DEF at many many locations.
