question about DEF fluid
well , with this being my first vehicle with DEF fluid , I have a few questions form you seasoned vets . . . We had a few (5) 2-1/2 gallon totes of blue DEF in our shop that I replaced with a 55 g...
Forum Discussion
ACZL wrote:jus2shy wrote:
DEF usage is tied with fuel burn. Basically, you should be burning about 1.5 to 2.5 gallons of DEF for every 100 gallons of fuel you go through.
Do you mean 1,000 miles? Otherwise, that's a lot of DEF use. My semi goes thru approx 7 gal a week/2,000-2,500 miles.
No, I mean 100 gallons of diesel. You're burn rate of 7 gallons over 2,000 to 2,500 miles is about 1 gallon of DEF every 60 gallons of fuel burned assuming you get 6 mpg in your Semi. So that would be in the target area of 1.5 to 2.5 gallons of DEF every 100 gallons of fuel burned (duty cycles alters this). Some people are lucky and are in that 1 to 1.5 gallon range for every 100 gallons of diesel burned. On my RAM, I seem to burn just under 2 gallons of DEF for every 100 gallons of dieselI burn through.
