Oldmobile Diesel: Why was it so bad. - mattbod
Just wondering if there are any in our little community who have experience of U.S cars of the 80s. A friend of mine in the States of British extraction has seen an Oldsmobile Diesel saloon with 80k genuine miles for the equivalent of about £1500. He says it runs sweetly and is a curiosity for him as it's unusual. Apparently though this engine 5.7 litre 125 hp is infamous for bad reliability and is touted as the car that caused the U.S market to show such resistance to Diesel passenger cars.

Do you think there is a market for Diesels in the U.S? I know that VW sold a few TDIs over there a while back but stopped? I would have thought the yanks would love modern Diesels as they seem to like low down torque.
Oldmobile Diesel: Why was it so bad. - oldnotbold
en.wikipedia.org/wiki/Oldsmobile_Diesel_V6_engine gives some of the story.

Diesel fuel in the US has a lower cetane than Europe, so it will tend to be an even more noisy engine. Given that they are used to smooth V6 engines, I can't imagine they'd appreciate a horrible racket under the hood, smelly shoes and a fuel bill that, until recently, was not much cheaper. Things may be different now, but I expect there is still substantial resistance to diesel cars.
Oldmobile Diesel: Why was it so bad. - mattbod
Interesting points in that article, better tell him to run a mile although there are some old campaigers running them on Youtube if you type in Oldsmobile Diesel.
Oldmobile Diesel: Why was it so bad. - ukbeefy
Also I've heard that because of the lower and more variable fuel quality in the US that modern turbo diesels may suffer all sorts of premature wear/stress on things like fuel pumps and injectors.

The main reason diesels are not popular is because the average American can't change gear ie drive a manual and they had very little imperative to save fuel at least until about 4 years ago. If they really bothered about saving fuel they'd learn to change gear and would drive smaller and more economical cars and not massive trucks. Only in the last few years has anyone been that bothered about fuel consumption - while Toyota as busy promoting the prius it was also launching full size V8 petrol automatic pick up trucks and selling bucket loads of them compared to priuses. A huge number of Americans know nothing other than driving a large petrol truck/SUV with at least a 4 litre engine and a fairly inefficient slush box. Frankly I think for those outside the cities they see driving a european size car as almost unamerican...
Oldmobile Diesel: Why was it so bad. - Group B
I would have
thought the yanks would love modern Diesels as they seem to like low down torque.


From what I've seen on YouTube one segment where diesel is gaining in popularity is their home-grown pickup trucks with big V8 diesels.
The antics of some of them might not help the diesel cause though - modifying them to big power outputs in the best Yank tradition, but the objective also seems to be to produce ridiculous amounts of black exhaust smoke..
See: snipurl.com/4sf7p [uk_youtube_com]
Oldmobile Diesel: Why was it so bad. - mss1tw
See: snipurl.com/4sf7p [uk_youtube_com]


Freaks!

Edited by Webmaster on 29/10/2008 at 00:25

Oldsmobile Diesel: Why was it so bad. - Pebble
What I remember about those early '80s diesel Olds is that those engines were unreliable and vastly underpowered--125 hp from a 350 V8??? Probably made worse by emissions controls of the time that really sucked power. You still see one once in a while, but they were quite the white elephant even when new, and never very popular.

Diesel is more expensive than unleaded anyway, nobody would want a diesel car here.

The other GM engine of the same time period that got a bad reputation was the Cadillac V8/6/4 thingy, you know a V8 where in certain situations 2 or 4 of the cylinders would not run as a fuel saving measure. Difficult and problematic if I remember right.
Oldsmobile Diesel: Why was it so bad. - jase1
If the Yanks ever took to diesel the resulting world shortage of the stuff would result in the fuel becoming unviable.
Oldsmobile Diesel: Why was it so bad. - Group B
the Cadillac V8/6/4 thingy you know a V8 where in certain situations 2 or 4
of the cylinders would not run as a fuel saving measure. Difficult and problematic if
I remember right.



Hope they have sorted that technology out as it has been reintroduced hasnt it? I understand the new Camaro will have "active fuel management" on the 6.0L V8.

Out of interest Pebble, you say that diesel is more expensive than unleaded over there, how much is diesel at the moment?
Oldsmobile Diesel: Why was it so bad. - Pebble
Out of interest Pebble you say that diesel is more expensive than unleaded over there
how much is diesel at the moment?


Well, I'll have to give you a best guess. I walked down to the corner where our nearest filling stations are, but neither of them sell diesel (availability is spotty locally, thus diesel drivers tend to carry a 5 gallon can in the back just in case). However, the price of diesel has been running probably 10-15 cents a gallon above that of unleaded, and unleaded at my corner was $2.73 tonight, so call it plus/minus $2.90 a gallon for diesel. Once you convert dollars to sterling and gallons to litres, it comes out in the wash at

unleaded, equivalent of 44p/litre
diesel, 46p more or less.

Diesel was always cheaper than gasoline growing up, it's only been in the last several years that it's surpassed the price of unleaded. Earlier this year when that price spike was happening diesel was approaching $5/gallon around here...choke! That's enough to make your eyes water
Oldsmobile Diesel: Why was it so bad. - uk_in_usa
>> Out of interest Pebble you say that diesel is more expensive than unleaded over
there
>> how much is diesel at the moment?
>>

>>


Here in Chicago suburbs: $2.67 for 87 octane gas, $3.39 for diesel.
Oldsmobile Diesel: Why was it so bad. - Pebble
A huge number
of Americans know nothing other than driving a large petrol truck/SUV with at least a
4 litre engine and a fairly inefficient slush box.


(Applause FX) works for us! My boss drives a Lincoln Mark V, 7.6 l/460 CID V8. Now that's Power to the People! My New Yorker is just a smidge shy of nineteen feet long, plenty of room for passengers and grocery runs.


Frankly I think for those outside
the cities they see driving a european size car as almost unamerican...


Welllll...it kinda is! Not to mention servicing imports is pretty hit-and-miss out in the rural areas. If your Peugeot (cue laugh track) breaks down in the middle of Iowa, you're on your own. Never mind that, get yourself a gargantuan SUV or a Ford Crown Vic and you'll be fine, all the more so now that unleaded is down to $2.60, 2.70 a US gallon. By the way, the dealership I work for has a '94 Dodge 15 passenger van for sale--now that's more like it. Take all your friends with you to the baseball game.
Oldsmobile Diesel: Why was it so bad. - b308
'94 Dodge 15 passenger van


LOL!

Trust the Americans to try to make a make a silk purse out of a sow's ear - its a minibus for Pete's sake!! :)
Oldsmobile Diesel: Why was it so bad. - oilrag
It`s really interesting to hear your perspective from the USA Pebble. I`m assuming you are an American Citizen yourself?

regards

Edited by oilrag on 29/10/2008 at 08:58

Oldsmobile Diesel: Why was it so bad. - gordonbennet
Well i admit i would have another effortless V8 auto cruiser in a moment if fuel here was the same price as in the USA.

I'd give my eye teeth for a new Dodge charger, the Chrysler 300 supposedly based on the same chassis does nothing for me at all, possibly because footballers found them desirable.

I seem to remember there being quite a market some years ago for the retro fitting of huge GM V8 diesels into range rovers to replace that 2.5 that was obviously way underpowered.
Were they as bad as the ones under discussion, or did they come from the huge pick ups.
Oldsmobile Diesel: Why was it so bad. - Pebble
It`s really interesting to hear your perspective from the USA Pebble. I`m assuming you are
an American Citizen yourself?


Yes indeed. Born and raised in southern Minnesota, now living in the land of all-night bingo and buffets, Las Vegas. Very proud to be an American despite all the flak we take from other countries. And for all I've said bashing imports, I'd actually consider driving one if you could get a decent one around here (you can't). Send your spare Hillman Imps here.
Oldsmobile Diesel: Why was it so bad. - Pebble
Oh, and concerning the 15 passenger minivan, that made me think about Ford's similar vehicle, the Ford Club Wagon--those seat 15 as well, and have sold in the millions over the years--they're very practical, and you see them a lot, especially in heavily Mormon areas like here, where you tend to have large families.
Oldsmobile Diesel: Why was it so bad. - mattbod
If things get really bad here with the eco hysteria and we are all reduced to driving little buzzboxes then I will definately be moving across the pond. The Americans love their cars.While we Brits wring our hands and worry about buying a car that is below £35 road tax and is horrible to drive, the American say give us something comfortable, effortless and reliable and cheap to fix when it goes wrong. I know we get a lot about the U.S "moving the green agenda" forward with hybrids but outside the Detroit tech centres and trendy L.A. Most Americans I know are completely apathetic to the enironmental witch hunt. I think the Americans will give up their V8s only when they give up their guns.

Why can't we have some more simple yet effectively engineered cars over here? And to those who laugh at U.S engines , look at the enginin the Corvette ZO6. This engine is a pushrod design that can decimate a Ferrari 430 in a straight line and wn't be too far behind on the corners either. Regarding those trucks, only morons wuld deliberately overfuel an engine to produce more smoke. I have encountered all three of the trucks mentioned on the Youtube Videos Ford F250 Powerstroke (6.0 V8 320 BHP) Dodge Ram Cummins (5.9 litre straight 6 320 bhp) and GMC Sierra (6.6 Durmax V8 350 bhp). All redline at 3000 rpm, sound absolutely fantastic and have enough torque to pull the Pentagon off its foundations. They are also reliable on low grade fuel. Even the Olds Diesels on Youtube solid and laid back.

What motors have you got had Pebbles? Maybe i'll ship out to Vegas and join you.

Edited by Mattbod on 29/10/2008 at 12:36

Oldsmobile Diesel: Why was it so bad. - Pebble
Most Americans I know are completely apathetic
to the enironmental witch hunt. I think the Americans will give up their V8s only
when they give up their guns.


Quite right, and we'll give up our guns when you pry them out of our cold, dead hands.
What motors have you got had Pebbles? Maybe i'll ship out to Vegas and join
you.


Boy, I wish I could put all the cars I've ever owned together at one time, it's been a mongrel lot. Let's see, I've had since age 17:

1976 Plymouth Fury--really good first car, cost $1200 in 1981
1975 Plymouth Valiant--nice, but transmission went out
1987 Chevrolet Chevette--rubbish/underpowered. Smallest car I've owned
1986 Ford Tempo--OK, but started to fall apart after 75,000 miles. Killed in accident
1975 AMC Pacer--YES!!! BRILLIANT!!! The best by far. Need another one.
1966 Studebaker Cruiser--really nice, kept in great shape by original owner...unfortunately totalled by SUV impact at 45 mph
1974 AMC Hornet--cheap banger, but had 360 V8 so plenty of power. No radio though!
1986 Dodge Diplomat--best banger you could imagine. Bought this for $500 in 1996, drove it till rust killed it at 140,000 miles. Highly recommended.
1989 Eagle Premier--Easily the worst car I've had, a Renault modified for America. Shameful that this was even sold here
1992 Ford Crown Victoria--can't recommend this highly enough. Many of these are used as taxis and police cruisers here and run 3 or 4 hundred thousand miles with minimal maintenance. Loved this car, killed in accident unfortunately (See a pattern here? Las Vegas roads are scary dangerous, accidents are a dime a dozen)
1986 Olds Cutlass--cheap winter banger, low GM quality although mechanically sound
1961 Plymouth Valiant--First rate! Had famous unbreakable Chrysler 225 Six and dash-mounted, push-button automatic transmission. Painted hideous robins-egg blue. Never better.
and my current 1981 Chrysler New Yorker, fuel sucking pig with comfort for six--this was found at a charity lot for $1250. Love it. When I was last car-shopping it came down to either this or a 1989 Merkur Skorpio, and I think I made the right choice.
Oldsmobile Diesel: Why was it so bad. - mattbod
Nice little selection Pebbles, made me laugh though moaning about a lack of radio when you had a 360 Ci V8 to listen to. Not being ironic by any chance....

Yes I like the Crown Victoria but have never seen one run as a private car in the States, always a police cruiser or taxi. They go like hell though for their size.
Oldsmobile Diesel: Why was it so bad. - uk_in_usa
When I was last car-shopping it
came down to either this or a 1989 Merkur Skorpio and I think I made
the right choice.


That's a American version of the Sierra isn't it!??! I agree with you
Oldsmobile Diesel: Why was it so bad. - Pebble
That's a American version of the Sierra isn't it!??! I agree with you


Ummm...I think that's right. Also look at what Wikipedia shows under Ford Granada Mark III, that's basically what I almost bought.
Oldmobile Diesel: Why was it so bad. - motorprop
I've owned a 1986 Ford F250 V8 6.9 diesel here in London since 1993. It's a great machine that's not used daily anymore and returns 22 mpg in mixed urban driving. The advantages to me are the autobox, LHD configuration ( you step onto the pavement as opposed to middle of the road ) and the open back which means you can load odd cargos easily and stand upright on the load box instead of hunched up. Oh and the crazy styling

In exactly 2 years' time I will have to sell it abroad or scrap it, due to the impending Low Emissions legislation ( or face a daily £100 charge for just moving it ) . Seeing as I use it once every 3 weeks at most now , that's just state - sponsored vandalism.

Bear this in mind before getting misty - eyed on Yank V8 diesels..
Oldmobile Diesel: Why was it so bad. - mattbod
Hi here's a car similar to what my mate was looking at but this one's immaculate and obviously been cherished

tinyurl.com/5ftslr
Oldmobile Diesel: Why was it so bad. - mattbod
If you look at the related vids you can find other similar cars including a Cadillac with this engine and an Olds Toronado Diesel for sale by Forrest Gump! See Oldsmobile Diesel Vid two and follow the links. Engine actually sounds quite strong if a little noisy

Edited by Mattbod on 29/10/2008 at 15:59

Oldmobile Diesel: Why was it so bad. - dxp55
GB

I am with you all the way - give me a V8 and slushbox anyday.

When I was in Texas a breakdown truck pulled out of a side road and two black columns of smoke shot into the air - my US friend said that has a CAT V8 diesel in it - it did sound nice.
Oldmobile Diesel: Why was it so bad. - gordonbennet
two black columns of smoke shot into the air - my US friend said that
has a CAT V8 diesel in it - it did sound nice.

>>

TBH i don't like to see that, constant overfuelling to gain only a fraction more power.

I as i've probably bored you with before was a great fan of big Cummins diesels in trucks, they had massive and constant torque from tickover revs and in correct tune all you could hear was the lovely gentle whistle of the turbo spinning with just a slight trace of black smoke as you went back under power following gearchange, a true drivers engine and a pleasure to drive. Not the 10 litre, that was plainly a horrid lump, no better than anything else, but the 14 litre was the one.
I haven't driven a CAT engine myself but understand they were if anything even better than the Cummins, must be some engine.

I've seen trucks that have been way overfuelled, belching black smoke out and generally running as sick as a dog with no efficient torque at all, all show and no go.

I wonder what it is about a torquey petrol V8 that causes that boyish enthusiasm, there isn't a car sound quite like it, the Rover V8's sounded quite nice but being so small somehow the sound didn't delve into the pit of your stomach where a 5 litre or above will, i still wind the window down sharpish if a likely candidate is within earshot for my ''V8 fix''.
It does amuse me when young chaps do the same when they see a 4cyl Subaru, am i the only one who thinks that is possibly the worlds most awful sounding engine?
Oldmobile Diesel: Why was it so bad. - mattbod
1)Gordonbennett if you look at the video posted on V8 trucks above you will see that some people have actually modified their trucks to produce excess smoke which is crazy! .

2)Talking of Cummins I think the new ISX 14 litre engine comes with a particulate filter so no smoke at all. I do like the 5.9 Cummins in the Dodge Ram. According to owners I have met it outlasts the rest of the truck. I agree with you on the V8. If such things are made prohibitively expensive here I will just have to move to America. Unlike here the nanny state doesn't rule!

3) Subaru Boxer 4 not a bad sounding engine, depends on the pipes. Best flat 4 is the one in the Alfa Sud IMHO
Oldmobile Diesel: Why was it so bad. - gordonbennet
new ISX 14 litre engine comes with a particulate
filter so no smoke at all. >>


1. Agreed, dreadful stink and pollution for no appreciable gain.
Just been having a 2 stroke, detroit V8 and deltic fix following your link, i feel better now.

2. DPF, i know they're all at it or similar due to legislation. I should imagine even they have lost that tremendous low speed grunt that made them so wonderful, economical too. I always thought those cummins engined pick ups would be the bees knees, was that the same engine that Leyland fitted to their 7.5 ton trucks (roadrunner IIRC) in the 80's?
I think an awful lot of us would like to get out, and many decent folk are, not just because of the nanny.

3. Sorry can't do it, a 4 cyl engine just don't do anything for me in the sound stakes.
Oldmobile Diesel: Why was it so bad. - Kevin
GB said:

>if a likely candidate is within earshot for my ''V8 fix''.

Mattbod said:

>I agree with you on the V8. If such things are made prohibitively expensive here I will just
>have to move to America.

If you guys live anywhere near Basingstoke I may be able to help.

A 5.7 Chevy with US spec exhausts?

£1 per minute to listen or £2 per minute if you want to push the loud pedal.

Much cheaper than an 0898 number!

Kevin...
Oldmobile Diesel: Why was it so bad. - gordonbennet
Much cheaper than an 0898 number!


Thats almost tempting, we need help..;)
Oldmobile Diesel: Why was it so bad. - mattbod
Gordonbennett the Cummins engine fitted to the Dodge Ram is a development of their 5.9 litre midrange engine so a derivative might have been fitted to the Leyland. However it is quite a modern engine with a 4 valve head and common rail injection. It is a straight 6 rather than a V8 but a very fine and long lasting work horse. I only experienced the 5.9 litre engine in Belize as it runs well "dirty" high sulphur Diesel. For the home market a 6.7 litre version of the 6 has been launched that will run on low sulphur stuff.

Have heard a Deltic used to see them as a kid before they were pulled in the 80s, loved the scream as they wound up. Even a Paxman V12 in an Intercity sounds great when really given the beans,sad I know. I've never experienced a Detroit V8 so give me the link, I understand Greyhound buses in the U.S ran them and wondered wy their engines sounded sporty and high pitched compared to our coach motors, is that because they are two stroke?

Anyway £2 to blip the throttle of a Yankee V8, hmmm in these troubled times I'll just stick with my Bullitt and Dukes of Hazard DVDs!
Oldmobile Diesel: Why was it so bad. - gordonbennet
I've never experienced
a Detroit V8 so give me the link I understand Greyhound buses in the U.S


Try this tinyurl.com/55xgcn

I think hemi pete may be hooked on these as well, nothing wrong with that.

If you were an unashamed anorak like me and joined the Deltic preservation society, they do keep several Deltics in running order, and during the warmer weather arrange long distance away day trips, brings a tear to the eye and memories of long ago being awed by these a boy.

Edit, worth listening to the Jacob (Jake) brake's whilst there too, tremendous retarder and sound good, where most other types sound noisy and thats it.

Edited by gordonbennet on 30/10/2008 at 09:27

Oldmobile Diesel: Why was it so bad. - Group B
a Detroit V8 so give me the link I understand Greyhound buses in the
U.S
Try this tinyurl.com/55xgcn


Reminds me of going to watch truck racing at Donnington in the late 80s, most of the field were the proper stripped out Mercs/ Dafs/ Volvos in racing livery. But then there was a mad Dutch bloke in a Peterbilt, it looked stock apart from numbers on the doors, it had a sleeper cab and IIRC he used to drive it to races and sleep in the back!

Was not particularly competitive but boy did it sound good! Watching it accelerate down the straight was the highlight of the day..
Oldmobile Diesel: Why was it so bad. - Kevin
>I'll just stick with my Bullitt and Dukes of Hazard DVDs!

No Daisy Duke shorts I'm afraid but it's a nice soundtrack:

tinyurl.com/5eea99

Kevin...
Oldmobile Diesel: Why was it so bad. - Big Bad Dave
"A 5.7 Chevy"

Camaro by any chance? Z28?

I came within a smidgeon of treating myself to one of those after my divorce. Long story short - got a new wife instead.

V8 Jag, V8 Chevy...

Can I buy you a drink Kevin, I feel another divorce coming on?
Oldmobile Diesel: Why was it so bad. - Kevin
>Camaro by any chance? Z28?

Yup.

I bought it new in '96 when I was on assignment in Austin, Texas and had it shipped over when we came back to the UK.

>I came within a smidgeon of treating myself to one of those after my divorce. Long story
>short - got a new wife instead.

My wife chose the colour (Bright Red) and spec when I ordered it and refers to it as 'her' car. It's the only car we've owned where she'd fight over who was driving. I think the only thing we'd swap it for is an Ultima or C6/Z06 Corvette.

>V8 Jag, V8 Chevy...

>Can I buy you a drink Kevin, I feel another divorce coming on?

Only if you're driving ;-)

Kevin...
Oldmobile Diesel: Why was it so bad. - Big Bad Dave
"I think the only thing we'd swap it for is an Ultima or C6/Z06 Corvette"

I did a photo shoot last year with a C6. I never drove it unfortunately, but the guy who did managed to spin it a full 180 - just leaving the dealership. We were wetting ourselves in the car behind but I doubt the staff were impressed. An amazing car. If you buy one of those, you'd have to beat the wife off it with a stick.
Oldmobile Diesel: Why was it so bad. - Kevin
>I never drove it unfortunately, but the guy who did managed to spin it a full 180 - just leaving the dealership.

The throttle on a Corvette, like the Z28, is fairly heavy but also very sensitive. The slightest movement has instant response especially in lower gears. You need a few minutes to get used to it if you don't want the rear end to break away.

>If you buy one of those, you'd have to beat the wife off it with a stick.

If there's one thing I've learned with Mrs. K is that even if I win I lose.

Kevin...
Oldmobile Diesel: Why was it so bad. - gordonbennet
to get used to it if you don't want the rear end to break away.

Kevin, i had the previous shape camaro to you, an 86 model, good car quick enough fair on fuel and very cheap on parts as you would probably agree (a good parts importer in Northants).

IIRC i bought it at 3 or so years old having been owned by a homebound member of USAF, and it was shod on US tyres which though fine in the dry were appalling in the wet, 4 wheel steering comes to mind.
I swapped them over to good quality European tyres and the car was transformed into a controllable and very pleasant RWD cruiser, as good as any European car of the time.

Just wondering how tyred you are.;)
Oldmobile Diesel: Why was it so bad. - Kevin
>I swapped them over to good quality European tyres and the car was transformed into a
>controllable and very pleasant RWD cruiser, as good as any European car of the time.

American cars come in for alot of stick over here and some rightly so, but some are also pretty damn good. I just wish that they'd spend a few extra $ on the interior.

>Just wondering how tyred you are.;)

My car came from the factory on 245/50-16 Goodyear Eagles because I'd ordered the optional wheel/tyre package. It was rather odd in that if you ordered it with standard wheels and tyres, the top speed was electronically limited.

When I needed new tyres in the UK I tried to get a set of Bridgestones but they are not available in Europe in the size I need and you can't import them if they don't have an 'E' mark. Goodyear Eagles were on a 2 to 3 month lead time so I plumped for a set of Avon ZZ1s which was a big mistake.

It's now on Kumho Ecsta which I rate as highly as the Goodyears.

Kevin...
Oldmobile Diesel: Why was it so bad. - Group B
the Rover V8's sounded quite nice but being so small somehow the
sound didn't delve into the pit of your stomach where a 5 litre or above will


I think a Rover V8 can sound good with the right exhaust, like in a TVR. But I know what you mean with the bigger capacity V8s.

My best "fix" in recent years was Santa Pod for the Mopar Euronationals; lots of 60s muscle cars running around with 6 and 7 litre engines, some with open headers. Just taxiing around the pits they make a gorgeous scary noise. European V8s sound far too polite and muffled in comparison.

Edited by Rich 9-3 on 30/10/2008 at 10:37

Oldmobile Diesel: Why was it so bad. - gordonbennet
My best "fix" in recent years was Santa Pod >> far too polite and muffled in comparison.


There seems to be many of us i suppose they'd call us 'petrol heads' still around, thank goodness we haven't all been brainwashed...yet, i confess i have no intention of growing up.
Oldmobile Diesel: Why was it so bad. - mattbod
Hear hear! I have no intention of growing up and I would rather take a bus than drive a hybrid or an electric car. I do hope the motor industry continue to refine the internal combustion engine rather than pander to the lefties and go electric. "Petrol head" may be too narrow a term as there are a lot of Diesel Motors out there that are wonderful as well: Just call me an old fashioned enthusiast!
Oldmobile Diesel: Why was it so bad. - Nickdm
Plenty of American cars out here in the Gulf; mostly huge SUVs with 6 or more often 8 cylinders. I read yesterday that American manufacturers are happily dumping their unsold gas-guzzlers on the Saudi market at low low prices.

Yet whilst petrol is cheap (20p/litre anyone!?), they don't even bother to import or refine good quality diesel fuel, meaning that you can't buy or run a diesel car out here even if you want to.

Isn't it the same problem in the US: keep petrol cheap and nobody will bother with investigating the merits (or not) of diesel? Isn't there a big conspiracy theory about this on the web somewhere, concocted by Congress/oil companies?!
Oldmobile Diesel: Why was it so bad. - DavidHM
I had a 2008 Chevy Impala 3.5 a couple of weeks back and got 32 mpg (UK) in over 1,000 miles of mainly highway driving due to the very long gearing (1,800 rpm in top at 70 - GPS or indicated as the speedo doesn't overread like cars here).

If that had been a diesel it would probably not have made it past 40 mpg with, say, the 3.0 cdti engine out of the Vectra.

At $3.39 for a gallon of diesel and $2.69 for petrol (roughly 70c/4l or 11p/litre, which is what we pay extra here) that would work out at 10.5c/mile whether diesel or petrol - so 25% better fuel consumption is immediately countered by 25% more expensive fuel.

At those prices, there is absolutely no incentive to switch from a simple, unstessed OHV V6 to a complex, expensive to fix and manufacture diesel engine. Even if fuel consumption and CO2 emissions are slightly lower, it would take much higher oil prices and taxation to make diesel a viable option - and there'd be an even greater switch to smaller cars before that happened.
Oldmobile Diesel: Why was it so bad. - nortones2
Some rather large fuel price fluctuations reported in the US: forums.tdiclub.com/showthread.php?t=224873&page=8

In some locations, diesel reportedly cheaper than gas, but seems there are volatile market conditions:)
Oldmobile Diesel: Why was it so bad. - mattbod
I have noticed though that VW has launched the 140 bhp common rail Diesel in the Jetta in the U.S and are selling it as a green car to rival the Prius.