Posted on 01/20/2008 1:24:30 AM PST by bruinbirdman
Interesting article, thank you for posting.
I have a diesel and I love it to pieces....I’ll never go back to a gasoline engine if I can possibly avoid it. I’m delighted that these automakers are going to be ‘pushing’ diesel in the coming years, as that will serve to lower prices on fuel and perhaps parts for the rest of us as well.
diesels are nice, I suppose,
but we need an electric car.
You get about twice as much gasoline out of barrel of crude than you do diesel fuel. I fail to see how this improves overall oil consumption. There's no free lunch.
GM will have a diesel half ton in 2010. By 2015 all the bugs should be worked out and I’ll buy one. No reason why my current truck, which I bought in 2000, can’t last for 15 years. Dodge will have one sooner, but they put out a crappy truck with a good motor.
Would you not save on oil consumption by switching to bio diesel?
The thing about diesels is that they are, in effect, hybrids; they’re ready for biodiesel without any modification. Anything — animal, vegetable or mineral — that produces oil is a potential fuel source.
I’ve read that biodiesel was Henry Ford’s first choice, but he went with gasoline because it was dirt cheap. At the time, it was a waste product — what was left over from the production of kerosene, which was replacing whale oil as the home fuel of choice.
Bio fuels are really solar energy fuels. Anyone know how solar cells compare to plants and the processing required and then the inefficient burning of that bio fuel in an engine compares to more direct electric cars? The only real and serious solution is build lots of nuclear power plants. You can then either go to electric cars or make fuel with electricity that can be used in more traditional cars.
This puts the lie to assertions that 35mph CAFE standards condemn us to driving flimsy, wimpy, unsafe econoboxes, or will ruin the auto industry. The technology to achieve that mileage, in a roomy, fast, safe car is here right now. I do not support the use of govt. fiat to achieve progress, but people on FR should wake up. Oil is going to run out sooner or later. Drilling in the Arctic won't change that fact. It makes no sense to continue driving oversized, overweight, technologically primitive machinery.
Production.
It is as simple as that.
But...
It takes more crude oil to make a gallon of diesel and if demand goes up in relation to gasoline it will cost a lot more - along with everything that is shipped or otherwise transported with it.
There’s no free lunch.
Comparing diesel to gasoline is apples to oranges.
Your limerick is missing the last three lines, and it doesn't rhyme.
How about a diesel-electric plug-in series hybrid? The lingering weakness of electric cars is limited range and long time to recharge. Gas and diesel engines have effectively unlimited range, because you can refuel and get back on your way in a matter of minutes.
A series hybrid is the best of both worlds; for a short daily commute, you plug in at home, plug in at work, and you have an electric car. When the battery gets depleted, the gas/diesel (or even LPG) engine, a generator, really, kicks in. The generator is always running at peak efficiency; it's on or it's not. There is no gearing down, no energy wasted at idle. There's not even a transmission. And when you're braking or coasting downhill, the engine becomes a dynamo feeding energy back into the battery.
The only downside is that when you're driving in full-electric, you're lugging around a generator and a fuel tank, extra weight you don't need. An ideal solution would be to make the car modular, so you could drive the electric and leave the motor and fuel tank at home; or even swap between diesel, gas, ethanol and LPG depending on what's available and cheap. But making such a modular system safe and easy enough for Joe Public to use would be a daunting engineering challenge, and it wouldn't come cheap.
When I was a teenager, I had an idea for a series hybrid. I wanted to get an old postal jeep -- they were switching over to the minivan-style ones, and the old CJs were going pretty cheap at government surplus auctions. Mechanically simple, reliable, good in a variety of weather and terrain.
My idea was to install an electric motor, put the batteries (lead-acid back then; we have much better options now) in the back, and put a generator and LPG tank on the roof. I chose LPG because it burns clean, and is readily available; you can swap out a gas grill-type tank at any major highway exit.
Alas, I never had the money, the time, or a garage to tackle the project.
Except that apples and oranges don't grow on the same tree.
If demand for diesel goes up relative to gasoline, then so will refining -- the market will follow the demand when refiners decide what to make with their crude.
I loved my VW Beetle diesel. (51 MPG)
It's not just the fuel. The modern turbocharged direct-injected diesel engine is also more fuel-efficient than most spark-ignition engines, esp. the antique pushrod, 2-valve per cylinder junk Detroit still puts out. Diesels are also more durable and require less maintenance.
if demand goes up in relation to gasoline it will cost a lot more - along with everything that is shipped or otherwise transported with it.
Almost everything that is transported to the market gets there by diesel already. Railroads and heavy trucks all run on diesels.
There may be no free lunch, but there is a less expensive lunch.
Conservatives should not be taken in by the propaganda put out by Detroit. Instead of innovating and competing, the Big 3 management put out absolute junk for years. Japanese competition forced them to finally improve their quality, but the still haven't learned to compete.
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