DEF is DEF. Name on bottle or where you buy it doesn't matter. If it is manufactured under ISO 22241 it is saamo-saamo. Never seen DEF without ISO 22241 qualification.I could not sleep ...
I pulled the hose off yesterday . Drained some DEF , but it was crystal clear . I guess , draining tank applies to RV only or low mileage vans , my 2014 has 120k .
Tractor Supply DEF
Good to check anyway
My friend's DEF system failed on his 14 , at 180k . He was buying DEF at Walmart .
He was getting codes for dirty def injector .
I agree.I really wonder how many of these "contaminated DEF" stories are actually cases of user error. This kind of "first-person report from a knowledgeable original owner" are more interesting to me than "I work on lots of these and see bad DEF all the time" reports. It's not that the sources are unreliable, it is just that known provenance makes a huge difference.
Yes. I have been following these arguments closely and I think I am mostly convinced. BUT, it is worth noting that there are two interpretations of the available data:Recently the general consensus on the Forum is that it is best to keep the DEF tank topped up. Apparently some glitches in the program or sensors cause problems when the tank is allowed to drop to the warning level.
DEF is fairly corrosive.What about SUCKING...it out with a pump?