You will not see as much diesel here because the higher mileage is
negated by the higher cost. I understand in Europe where it is on par
with gasoline there are more vehicles. A clean running diesel is less
polluting since less fuel is needed. VW was cheating on emissions
testing and I don't know how other makes compare. Most of the stink on
the road is from polluting truck exhaust and could be gasoline too.
Here's what that article seems to have said
. Almost All European Diesel Cars Are Dirty, New Study Finds
. they used a beam of light to study a car's exhaust plume
. No diesel car was found to be given a "good" rating
. The study did not test 2019 models
. All the latest models of European diesel cars are bad polluters
. they exceed 2019 nitrogen oxides (NOx) levels set by the European Union
The thing is that I don't care about pollution for this question.
What I got as answers were that diesel engines last longer.
There was no cost per mile efficiency given current USA fuel prices.
How is the acceleration compared to gas cars?
The torque curves must be very different than gas engines, aren't they?
Diesel engines have more bottom end torque. More "grunt" but
generally get "wheezy" at higher RPMs. Turbos help.
They also generally have a distinctive "moan" which often translates
to a "buzz" in the bodywork which can also translate to electrical and
electronic failures from cyclic vibrations.
Acceleration can be very good. I've owned one diesel years ago and it
had a little turbo lag but once the rpm came up it was quick. I had a
rental for a couple of weeks in Italy, a Citroen, and it was very
capable. There are even some diesel race cars.
I understand the VW TDI engines performed quite well -- before VW got
tacked to the barn door.
I worked for a startup and when the company finally started making money
the owner bought a Mercedes diesel. He was used to American performance
cars and stepping on the throttle and having no much of anything happen
did not impress him. The last straw was when his ever helpful college
student son tried to fill it with unleaded.
That got traded for a Cadillac Cimmaron. That wasn't too exciting either
and when his secretary drove in with her new Pontiac which was the same
car without the bling, the Caddy was a goner.
Next stop was a Lincoln Town Car, which he liked. In his politically
incorrect way he said "If I'm going to go n----r rich, I'm going to do
Diesels have their place. They can't be beat in a truck where you're
pulling weight. If I wanted to drag a 35' fifth wheel around the
country, I'd want a Cummins.
I've driven a few diesels. The diesel Astra I drove in Austria was
great for the driving I did there - handled the hills very well
-accelleration was lackluster and passing was sometimes a bit scary -
but overall it was a good car for the task. Not sure I'd want to drive
it across north america.
Just worked on and drove a diesel Passat last week. Terrible turbo
lag, but an easy long-legged cruiser - but again passing at speed
Drove a few diesel SUVs in Burkina back in 2000. Again, for that
purpose they were somewhere between adequate and great. Running the
"fabedougou expressway" there was nothing better. (basically a goat
On Sunday, September 23, 2018 at 3:41:44 PM UTC-4, K120 wrote:
You must be listening to vintage diesel cars. Modern ones are hard to
distinguish from a gas engine. The advantages to diesels are better
mileage and longer engine life. A big advantage they used to have too
was lower fuel cost, but with the move to low sulfur, diesel is now
at a premium. I would agree that today, I see no compelling advantage
to diesel here in the USA. The better fuel economy is offset by the
higher price for diesel and few car owners are going to keep a car
long enough that the longer engine life comes into play.
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