DEF Math
The owner's manual says my truck has a 5.5 gal DEF tank. I waited until I was down to 1/4 on the gauge, just above the red zone, and added a 2.5 gal box of Blue DEF from Advance Auto. Now the gauge ...
Forum Discussion
BB_TX wrote:
Understanding DEF date code. Not obvious.
DEF date cide
This is why I tend to not buy Peak. WAY too cryptic date code. Why not just use a date?
JK
