Will TDI ever be available CA, NY, MA, ME?

And that is just the thing, TDIs are not 50 state compliant. You could haul a 2004 TDI to California and you could drive it there, but you can not register it there as a new vehicle. This is not because diesels are banned in CA or the other states mentioned, these states just hold diesel cars to emission standards they can't meet, at least not with the diesel fuel currently available.

Reply to
Randolph
Loading thread data ...

There is no VW that is 50 state compliant. For those of us that live in Calif or the NE states, there is a $150 emissions charge on any new VW model or engine option. VW's meet federal emission standards, which is different than 50 state emissions standards. I also believe that the reason the diesels are not emissions certified, is that Calif and the NE states are waiting for new regulations on diesel fuel quality to take effect in the next year or so.

Reply to
Larry

I don't know what the big deal is about diesel cars in these four states.I guess they just want you to spend more money on overpriced gasoline,and how many people buy diesel cars to actually claim it's a hazard to the environment as they say.

Reply to
BIGDETROITD

Here in Ohio, diesel costs more anyway...Certain emmisions are better with diesel, others arent, like actual carbon particulate, and I believe HC's are much higher with diesels.

Reply to
Biz

While that's true, the new SUVs still aren't great. And because many of them classify as trucks, not as cars, the emissions requirements aren't as strict. The air quality has gotten better here since the early 1970s, partly because of the new laws. Steve Grauman

Reply to
Steve Grauman

At the immediate exhaust ports at the engine, yes, but you also need to count that what goes out is then processed by the catalytic converter. There's more going on than just how much fuel is burned.

Reply to
Matt B.

Doesn't hold for the diesel. Nor stratified-charge gasoline engine.

A diesel engine typically operates at lean to very lean mixture. Power output is regulated by varying the quantity of fuel injected. Air quantity at a given engine speed is constant.

Because diesels operate in excess air, there's the propensity to generate more NOx, but much less HC and CO. Under low load however, which is where the engines typically operate in a passenger car, the vast amount of excess air keeps the combustion process sufficiently-cool to keep NOx levels low, even without post-combustion exhaust gas treatment.

Catalytic converters and even particulate filters are becoming more common for diesel engines in passenger cars.

Reply to
Bernd Felsche

But - California is poised to change fuels soon. Instant compliance :)

Reply to
Joseph Oberlander

The problem is they measure PPM and not PP*mile*. A car that puts out 30 NOx and gets 15mpg isn't as clean as a one that puts out 50 NOx and gets 35mpg. SUVs put out much more net pollution than most small cars.

Reply to
Joseph Oberlander

And hence you validate my post, I was responding to a guy who said cats dont matter, without that chemical reaction taking place in teh cat, much higher emisson figures.

Reply to
Biz

Yes...I agree w/you there. All other things equall they *do* have a function.

Reply to
Matt B.

If only that was true. The number of older cars is very tiny compared with the number of newer cars on the road. So the problem is not old cars. They contribute only a tiny bit to all the pollution in the air.

------------- Alex

Reply to
Alex Rodriguez

So what *is* the problem? A: Trucks. All those diesel trucks without smog controls on them.

Reply to
Joseph Oberlander

We have major air quality issues here affecting Los Angeles and the Central Valley, due to the high mountains that traps air particulents. It affects issues as simple as buying charcoal lighter fluid in stores and the use of gasoline lawn mowers and edgers. Diesel fuel is running about the same price as gasoline, BTW, so both types of fuel are overpriced. :) Even non fuel related activities, such as ag activities that put dust in the air are subject to upcoming regulations by the EPA.

Reply to
Larry

I believe it. In the southern coastal area of California in 1998, light duty vehicles 15 years or older accounted for 11% of miles driven, but

39% of NOx and ROG (reactive organic gases) emitted from light duty vehicles.

Source:

formatting link

Reply to
Randolph

MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.