Blue DEF
Just wondering about DEF for your diesel trucks. My dealer that I bought my truck from said just use Blue DEF and nothing else. I talked to another camper with a diesel truck and he said he buys the...
Forum Discussion
rhagfo wrote:Lynnmor wrote:
DEF is DEF, buy whatever has the lowest price. I do have concerns with dirty nozzles at truck stops, but many use it with no problems. Walmart most likely has the best price on their own brand.agesilaus wrote:
As noted DEF is DEF is DEF. It is all the same, save yourself some money and buy the $7 stuff from Walmart.
So you are both certified chemist that have tested all brands of DEF on all counts including purity.
The effects of less pure DEF likely will not appear right away, the same as using cheap engine oil will only build sludge which leads to issues down the road.
As often as I need to add DEF I will use a brand name.
Not a chemist, but I can read. Look up ISO 22241
