DEF how old is too old?
I have an opened jug of DEF dated July 2019. Can't tell if that is a manufactured date or an expiration date. Any ideas? Or should I just breakdown, dump it and buy a fresh jug?
Forum Discussion
There is no solid answer.
All sorts of conditions come into play like heat or cold or sealed or unsealed.
"I" would not worry about it if it was sealed. But that's me.
All sorts of conditions come into play like heat or cold or sealed or unsealed.
"I" would not worry about it if it was sealed. But that's me.
