How do diesel engines compare to gas on pollution

[BillGates]

I think diesels are definitely more visibly polluting the air. I get pissed when I see dump trucks starting from a stop and spewing craploads of dense black smoke out their smoke stacks. This is most likely caused by either an engine with out of date technology or an out of tune engine, but either way, it creates a bad impression of all diesels for me.

 

[cavemanmoron]

Originally posted by: ToBeMe
Here ya go!😉 Been looking at replacing my V10 powered F350 super crew with the deisel version so been doing some looking lately.................

Diesel Engines and Public Health

at work we have 4 turbo diesel 2001 super duty f 350 trucks, they meet some Low emission requirements, and make some Very good power/torque !

decent on fuel econmy too,for the work we do with them, like put 2.5 tons of salt on them and spread it
on the roads,parking lots at the work area!

🙂

 

[Tiger]

Diesel engines emit large quantities of particulate matter (called PM) and nitrogen oxides (NOx), the latter a precursor to particulates and smog. Collectively, diesel-powered vehicles account for nearly half of all nitrogen oxides and more than two-thirds of all particulates from US transportation.

And I don't care. BWAHAHAHAHA!!
Cummins power baby!😎

 

[N8Magic]

Originally posted by: Garfang

Originally posted by: Roger

All you need to do is drive behind a VW TDI, and you'll smell that they're not as clean as gasoline engines.

That's the high sulfur content in the diesel fuel that is sold in the U.S. that you are smelling.

Yeah, that's a "high" that doesn't feel so good.

Curious, were you driving behind one of the "new" TDI's (97-present), or one of the older VW Turbo Diesels?

The older models tended to belch the black smoke that everyone knows and loves. On the other hand, the only time I see smoke from my '02 TDI is with cold starts in the morning. (and it's gone within 15 seconds) 🙂

BTW, thanks for posting all of that great info Roger.

 

[wyvrn]

My only comment here is that you eventually have to pay the piper. I am in favor of *some* controls and incentives to ensure we balance choice with health, so that our future generations will also have the rich world to live in.

Originally posted by: Tiger

Diesel engines emit large quantities of particulate matter (called PM) and nitrogen oxides (NOx), the latter a precursor to particulates and smog. Collectively, diesel-powered vehicles account for nearly half of all nitrogen oxides and more than two-thirds of all particulates from US transportation.

And I don't care. BWAHAHAHAHA!!
Cummins power baby!😎

 

[JYDog]

Vwagen's TDIs with PD(Pump Duse, or unit injectors) will spray fuel at an astounding 30,000psi or over three times higher than any current diesels engines. An example of the benefits are that while its regular 1.9L makes a nice 90HP and 155ftIbs the 1.9 TDI PD makes over 130hp and 238ftIbs. Pollution particles are also reduced.

 

[Howard]

Originally posted by: Evadman
Diesel is a fuel, not a type of gasoline. Diesel has an extreamly low octane rating (around 40 IIRC) and auto combusts when it is sprayed into the combustion chamber at pressures aprocing 5000 psi. it is not premixed with the air before entering the cyl.

Diesel's tend to produce more particulates than gasoline, but other than that, I am not positive on the amount of other emisions produced.

US diesel fuel is high in sulfer which makes it so a catolitic converter can not be run. if the US used low sulfer diesel, the cat would help immensly. they are used in europe.

Diesel has 0% octane...?

 

[N8Magic]

Originally posted by: Howard

Originally posted by: Evadman
Diesel is a fuel, not a type of gasoline. Diesel has an extreamly low octane rating (around 40 IIRC) and auto combusts when it is sprayed into the combustion chamber at pressures aprocing 5000 psi. it is not premixed with the air before entering the cyl.

Diesel's tend to produce more particulates than gasoline, but other than that, I am not positive on the amount of other emisions produced.

US diesel fuel is high in sulfer which makes it so a catolitic converter can not be run. if the US used low sulfer diesel, the cat would help immensly. they are used in europe.

Diesel has 0% octane...?

It's all about the cetane value when it comes to diesels. 😀