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I've repeatedly seen the argument that diesels are cleaner than gasoline engines. The problem is, their pollutants are just different. In Texas, diesel trucks d

by bedast 4y ago

I've repeatedly seen the argument that diesels are cleaner than gasoline engines. The problem is, their pollutants are just different. In Texas, diesel trucks don't even go through smog testing. Soot and NOx are toxic. NOx are greenhouse gases and contribute to pollution and climate change. You may not be trying to choke people, but you're doing it anyway by defeating emissions controls. You can justify it all you want, just make sure you understand the consequences. Those "micro-regulations" as you call them exist for a reason.

no-s 4y ago
> You may not be trying to choke people, but you're doing it anyway by defeating emissions controls. You can justify it all you want, just make sure you understand the consequences.Those "micro-regulations" as you call them exist for a reason. But that’s my point. I had my vehicle tested using the applicable defined protocols and it’s not violating the standard. I don’t think the regs are an adequate standard on NOx for urban areas, but it still passed when tested under simulated driving conditions. I didn’t defeat the sensor output (OBD-II interface) to pass testing, I just tuned it to report all the deleted gear was still in place (this turns out to be a feature in the vehicle config, so I didn’t have to hack anything). Otherwise it wouldn’t have progressed through the test. I wasn’t doing all that to get an emissions cert because I don’t need one, I just wanted to verify I wasn’t creating a monster...
- bedast 4y ago
  It sounds like you got regulatory testing done. Again, regulatory testing of diesel emissions are highly lacking, and emissions testing tends to focus more on specific toxins and greenhouse gases. So, sure, maybe you passed regulatory emissions testing, but it doesn't mean you didn't create a monster. Connect a modified diesel to a Texas emissions testing system and it'll likely pass while it's spewing soot and other garbage.

by bedast 4y ago

no-s 4y ago

> You may not be trying to choke people, but you're doing it anyway by defeating emissions controls. You can justify it all you want, just make sure you understand the consequences.Those "micro-regulations" as you call them exist for a reason. But that’s my point. I had my vehicle tested using the applicable defined protocols and it’s not violating the standard. I don’t think the regs are an adequate standard on NOx for urban areas, but it still passed when tested under simulated driving conditions. I didn’t defeat the sensor output (OBD-II interface) to pass testing, I just tuned it to report all the deleted gear was still in place (this turns out to be a feature in the vehicle config, so I didn’t have to hack anything). Otherwise it wouldn’t have progressed through the test. I wasn’t doing all that to get an emissions cert because I don’t need one, I just wanted to verify I wasn’t creating a monster...

bedast 4y ago
It sounds like you got regulatory testing done. Again, regulatory testing of diesel emissions are highly lacking, and emissions testing tends to focus more on specific toxins and greenhouse gases. So, sure, maybe you passed regulatory emissions testing, but it doesn't mean you didn't create a monster. Connect a modified diesel to a Texas emissions testing system and it'll likely pass while it's spewing soot and other garbage.