Not sure, I've never a seen a poor quality def warning. The distance part of the warning you're getting makes me think your truck wants a forced regen and fresh def, the codes indicate the tank/heater is bad. What year is your truck? If it is under warranty just bring it to a dealer. If not I would try a def fluid swap before replacing the tank.
Average Assembly
4.8%
That's the likelihood of a light duty vehicle reaching 250,000 miles. Link below has the stats on this. Among pickups the 350 series (Dodge) and higher (450 Ford) are most likely and nothing American built in the lighter trucks pegs a number higher than the overall average. 200K and up is the stomping grounds of Asian vehicles. Toyota Sequoia the leader at 39.1% probability.
https://www.autoweek.com/news/a68886903/vehicles-most-likely-to-last-over-250000-miles/
Likelihood drops dramatically at 100,000 miles of reaching even 150,000 miles. 250,000 is deep in the tail of the curve.
I've been told by the 'experts' that I don't need oils of the caliber I use. My high viscosity is damaging my motors. Ash content it to high and WILL foul plugs and kill cats and O2's. I don't need that much ZDP; my choice is over added and not cutting edge. I change it to often. I baby them to much.
Three Honda's reached 200K + and none used oil. All Red Line motors. All sold to friends or family. One Toyota reached 300K using oil, Pennzoil. Dizzy 300K using QSUD until it cashed the rings at 80K then whatever but often ever since. Did you know this engine still sports the OEM timing chain and is dead silent? Pepper spitting into the wind short of 200K, Red Line and changed often. Uses zero oil. A HPFP and a pinion seal. Still using most parts it left Fort Wayne with. So 50% of my vehicles have gone past 250K and 100% of the last half dozen past 200K. Of these two using "shelf oils' did so using abnormal oil and the four that used a premium boutique oil did not. There might be something there the experts have missed. 🤔
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