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How much of the US is "urban areas"?
Looks like the trade off is, breathing safe exhaust here, screw the rest of the planet.
Every person I know with a diesel truck is like "as soon as the warranty is up, bye bye emissions system".
Not just the DPF, the EGR, the injection timing program that "preheats" the cylinders with a few tiny injection pulses before the main injection events. The "preheating pulse" decreases fuel economy, reduces engine noise, reduces peak combustion temperature and pressure, reduces NOx and increases soot.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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