For this discussion, I called “fail“ and “limp mode” the same thing.
I call a ruined engine or transmission a “blown“ engine, not a “failed” engine.
Doesnt change the intent to say that urinating in a DEF tank would cause the engine to fail, derate, limp, etc.
If you’ve ever towed anything substantial and the engine went into limp or failsafe mode, its scary. Ive lost DPF sensors while towing and I had seconds to get off the road. It is a very unpleasant experience and could cause an accident.
Bottom line is, DONT pee in your DEF tank. It will cause the DEF system to fail and derate your engine and an unknown host of repairs.