Yeah, a little smoke is acceptable occasionally, but " rolling coal" shouldn't be a regular occurrence IMO. That's what it is, an opinion. Anybody claiming otherwise is probably messing with you, trolling. Trying to defend your position only brings more assinine responses, pretty soon it's time to cut your losses.

you are right. :hellox:

Back at the end of 2009, Cat announced that they would no longer be making on-road engines, and at the time was a permanent decision. Now they obviously restarted production after making the necessary emissions changes, but I believe that for at least a year production stopped.

That's correct. They stopped production of truck engines in 2009, and I remember my dad being upset since he was fond of the Cat engines. But now he likes the ISX Cummins and we added a few of those. Cat just recently started again but exclusively in their own trucks.

True story, back in the early 2000's the wife of the head of the EPA, whose name escapes me at this moment, was visiting relatives in Mississippi and had a trip to a friends house in Alabama. She was forced to take a 2 lane road for the entire trip and during that trip was "smoked out" on 2 separate occasions by diesel trucks that were "rollin coal". That's when it all started and the EPA turned their laser beam to 3/4 ton and 1 ton diesel trucks. So a big thanks a lot to the kids who were rollin coal that day. :argh:

Sorry, thats just an anecdote.

The real story is that CARB broke away from EPA standards and set tighter emissions for their state. Other states soon adopted their standards and the EPA has been trying to keep up with CARB so they won't look bad.

CARB has been anti-diesel for the board members personal reasons. Its been proven they intentionally manipulated NOx pollution data in the late 90's so they could justify reducing NOx emissions limits by more than 99% over 20 years. Knowing NOx is by far the most difficult emission to control in diesels because of the lean A/F ratios and high compression/combustion pressures.

http://a1.sphotos.ak.fbcdn.net/hphot...22383301_n.jpg
And thats just the EPA's plan.

But despite being exposed falsifying data and proven that absurdly low NOx emissions do not provide any benefits, they will not reverse the limits they have set. Consequentially, its almost impossible for diesels to meet modern US emissions without extremely expensive after-treatment devices. $8000 added to the MSRP to buy a Dodge/GM/Ford diesel show this, as compared to just $2000 in 1989.

True story. Overestimated off-road emissions by 340% and then again, on-road emissions by 55%.

CARB – Diesel Emissions Overestimated 340% | Co2 Insanity

CARB Get

California Ignores Scientific Protests, Passes New Diesel Regulations | Heartland Institute

i have seen trucks cover the road in smoke and would be running in tip top shape with no probs

Other than they were massively over-fueled. Smoking out your buddies can be fun, smoking out random drivers on the interstate should be avoided, it only adds public pressure to regulate diesels.

Agreed:tu: