To "delete" or not to "delete"

6.6 Oilburner wrote:


I'm sorry I have no hard Data on paper, and considering the consensus of every last person I have had this conversation with in the industry in my area, I am BEYOND flabbergasted that you continue to praise how this equipment works and claim it poses no hardships on the end user.

YMMV. I'm in the industry and let's say we have had a few issues, but nothing huge with the new emissions systems. It hasn't been as "Huge" of a problem as you dramatize it being. Also, with the right duty cycles, you almost never go into regen-mode with the vehicles, so no extra fuel is dumped (most applicable to medium and long haul duty cycles). The RAM trucks in particular tend to use less fuel for regenerations because they have the closest-coupled DPF system to the engine, so they get plenty more heat to naturally burn off the soot. GM and Ford also have a no-fuel regen mode if you are working your truck hard and often enough.

The only emissions systems we struggled with are the 2007 to 2010 emissions. Post 2010 with the introduction of DEF, fuel economy came back and we've had just a bad batch of DEF injectors replaced under warranty. No real issues since. This emissions equipment is more reliable than the turbo-chargers on our vehicles built in the 90's. Had to replace those almost every 60k to 100k miles to the tune of 1000 bucks a piece. Our modern DPF's last to about 250 or 300k miles, and that's going through the same duty cycle as a refuse truck. It's extremely rare for a ceramic brick to fail on us. We run a forced-regen every major inspection (about 30k miles). We've had no real issues after training up on how to properly fill the coolant system so we didn't crack EGR coolers and EGR valves tend to let go after 100k miles or so. Again, this is for a vehicle that drives in a refuse truck cycle. Your average 3/4 or 1 ton truck owner will never abuse their vehicle at that level.

Lastly, if you grew-up with Asthma, you'd strongly appreciate the much cleaner air that current vehicle put out. In fact, emissions are so clean that regulation probably won't change for a very long time. However, there is thought of adding particulate filters to gasoline-turbo engines since they're the only motors that roll a little smoke at this moment.

The regulation on the horizon is a CARBON emissions regulation. Basically, this means that the OEM's will need to find a way to increase fuel economy. Carbon emissions are pretty much tied with fuel economy.