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Old 12-02-2008, 02:29 PM   #51 (permalink)
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Originally Posted by tjts1 View Post
Sorry but thats simply not true.
Prove It

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Old 12-02-2008, 02:33 PM   #52 (permalink)
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No graph in front of me, but as a delivery driver and a pretty observant person out in the real world...when the gas prices were jumping higher 12 cents a week the diesel more or less held. When the gasoline drops as it has over the last month, the diesel still holds...What happened about 2 years ago was extra tax was imposed, so truckers know to fill up on the other side of the border. You cant convince an end user with wholesale averages trends. We know what we pay.

Today in my area gas is 1.79. Diesel is still higher than the price of premium gasoline, about 2.31. Last year gasoline was 3.09, premium 3.29, and can't find the diesel price of 2007. These 2008 nuimbes scream right past any 5 10 or 15 percent. I wanna say 20 percent in 2008. 5 percent ha.

Im still not convinced to buy a new diesel powered car. If one is given to me more than happy to use it near exclusively. I would however step up to diesel for a truck to pull toys and for work. Since I do not have toys, no truck is needed at all.
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Old 12-02-2008, 02:42 PM   #53 (permalink)
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Well, it got my interested....

Gasbuddy for Oakland, CA... I chose oakland because I used to live near San Pablo and Stanford.....

Cheapest Gas (Gasco) $1.71
Cheapest Diesel (Quick Stop) - $1.81

Most Expensive Gas (Shell) $2.75
Most Expensive Diesel (Valero) $3.89

Cheapest Difference 1.81-1.71 = .10 = ~5.5%
Most Expensive Difference $3.89-2.75 = 1.14 = ~29.3%

http://www.oaklandgasprices.com/

Quote:
You cant convince an end user with wholesale averages trends.
I don't wish to convince anyone based on that... But this 67% figure is being stated as fact based on someone's quick off the cuff estimates.... It doesn't even pass the believability test.....
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Old 12-02-2008, 03:40 PM   #54 (permalink)
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Originally Posted by tjts1 View Post
Sorry but thats simply not true. Anybody living in California can tell you that. And when diesel costs 67% more than regular unleaded you can bet that the local VW and Mercedes dealers aren't selling any diesel cars.
Tell that to Energy Information Administration. It's their numbers against your eyeballing of the situation.
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Old 12-02-2008, 05:34 PM   #55 (permalink)
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Originally Posted by trebuchet03 View Post
Potentially - keep in mind that small motor scooters, despite their lower consumption have been found to pollute more that farm equipment in grams/mile. Your consumption doesn't change the standards you are required to meet - if you're a motor scooter, those standards are super lax.



Please, tell me where you see gallons of fuel in the grams per mile unit.

It doesn't matter how many gallons you burn - that is not what standard controls.... It's purely emissions per mile weather or not you burn 10 gallons, 12 gallons, 20 gallons etc.


If you feel emissions on the refining/distribution side is something less than optimal at this current time... Then write your representative(s) to enact and enforce stricter emissions standard - ask them to join the lawsuit in progress. Going backwards on end user emissions so sludge eating oil tankers and refineries put out less is just idiotic. You can't rob Peter to pay Paul and expect to win.

At least we have 35mpg in new cars by 2020 (which should help with the distribution side)... But that still puts us behind China, EU, Japan..... Other indicators say we're done being number 1 anyway

And again.... I fail to see where the new stricter standards are slashing FE, hindering innovation, etc....
I Was making the gallons of fuel to grams per mile example in the fuel per week example.

Ok I'll try something else.

Let's put the McClaren F1's engine in my Del Sol. Same emissions controls that I have right now. (and for all intents and purposes the only thing that changes is the consumption ratio of the engine and its output).

The catalytic converters reduce a percentage of emissions. No catalytic converter in any vehicle measures the amount of emissions coming in and says, " I can go easy because there are not enough emissions anyway." Inversely, they can't all of a sudden crank up their ability to reduce emissions because you dump gallons of fuel on them. If you don't believe me pump fuel into your catalytic converter while the car is on and measure your new grams/mile emissions. They just went up. Catalytic converters do the best they can all the time, they do not have an ECU to manage how fast or how hard they go. the cat goes fullspeed all the time.

In saying that if we take my 1.5 liter power plant out and drop in that v12 I promise you my grams/mile goes up.

Just because the requirements says you can produce this much does not mean your car is always producing exactly that much. Auto-manufacturers designed the car at its peak fuel consumption to only produce .grams to a mile for diesels. If your engine is consuming less fuel then it is producing less of those emissions that get filtered out, consequently since its a percentage a small overall number of emissions hit the environment. Let's just say its 95% efficient. At 3,000 RPM and throttle all the way open your engine yields its .whatever grams per mile and for ease we will say 1 gram per mile before filtering and just .05 grams afterward. at 1,000 RPM throttle also wide open your car only consumes 1/3 as much fuel as it does at 3,000 so its only producing .3 grams before it gets filtered and just .015 grams per mile after.
.015 does not equate to .05. It's less. In reducing the engine's fuel consumption you always reduce the emissions the engine produces. No fuel no emissions, lots of fuel lots of emissions.

Racing applications rarely have any form of post engine emissions controls. why? because it cuts down on HP and FE.

You CANT overcome the pollution dumped in by removing those controls in your car to improve FE.

No congressional litigation is never the answer for anything. Gas prices reaching 4$ a gallon will have sucessfully raised the FE demands by the public than congressional litigation ever can. It's always easier, faster and more effective to control people through economics than litigation. Everyone in the world will buy a cheaper more effective engine. Less than 1/4 countries will ascribe to Kyoto protocols.

Once again I did not say make engines dirtier just to make them dirtier. I said save gas, save money, save emissions.

More congressional mandates against refineries, tankers, diesels, electrical plants, pipelines, oil rigs and every other facet of fuel production would not solve the problem. It takes 1.25 times more energy(and therefore emissions) to convert crude oil to GASOLINE than you can possibly get out of gas. Therefore every single time you lose any gas you multiply the amount of energy wasted. You waste fuel in your engine, you waste fuel at electric plants and refineries. you create emissions at the pipe, at the refinery and at the plant.

It's ignorant to force EPA emissions ideals because its the smallest contributor. The same money would be infinitely better spent on funding for more efficient engine designs. If you increase engine efficiency(MPG) 95% you reduce the engine's emissions per gallon(consequently per mile) 95%. So why waste time regulating something that most of the world will ignore and just make a better engine instead and cut global gasoline emissions by 95%. As I said above though, you'd be reducing it much more than 95% because it takes 125% of one gallon to make a gallon. . .by increasing engine efficiency 95% you increase the overall efficiency 118%(read huge drop in emissions).

So if I make my car JUST 14% more FE by ripping out the Cat going 4-1 and popping the muffler I reduce emissions 17.5% in the whole process(because the emissions I create are less than the refining process and just the electricity required I save 17.5 at the electrical facility and then add in savings throughout the rest of the chain).

Last edited by cfg83; 12-02-2008 at 05:55 PM.. Reason: Fixing Quote (Again)
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Old 12-02-2008, 05:38 PM   #56 (permalink)
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I mean they are two ways to reduce emissions, grams per mile(g/Mi) or increase FE(which relates because (Mi/gallon)*(g/Mi)=g/gallon so if I decrease the number on the bottom the number on top also gets smaller.)

In short the g/Mi restriction just means that dirtier engines have to clean more than lean ones. The greater MPG engine will always have a lower emissions everything else held equal. . .
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Old 12-02-2008, 06:09 PM   #57 (permalink)
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Originally Posted by theunchosen View Post
I mean they are two ways to reduce emissions, grams per mile(g/Mi) or increase FE(which relates because (Mi/gallon)*(g/Mi)=g/gallon so if I decrease the number on the bottom the number on top also gets smaller.)
Are you sure you don't work for NASA? They too are classically known for going fubar with units.

We're talking about a standard... Your car MUST meet these standard. It doesn't matter weather or not your car consumes 10 gallons or 8.75 gallons because you're only permitted, by the standard, X grams per mile. "Gallons of emissions" is not a unit used by any standard I've seen. Furthermore, grams per gallon does not statistically control the variation in fuel economy ratings for cars. Using that sort of unit would be a perfect loophole for gas hungry vehicles akin the relation between SUVs and farm equipment taxes.

So lets say you've got a Bin 5 vehicle that gets 40mpg. You're permitted .07 g/mi of NOx.

Now lets say your friend also has a Bin 5 vehicle, but it gets 18mpg. It too is permitted .07 g/mi.

Both of those vehicles are permitted the same output.


Now if you really want to bring in gallons of fuel.... You can by recognizing the 18mpg bin 5 vehicle is going to need more "robust" emissions controls to meet the standard.


Quote:
so if I decrease the number on the bottom the number on top also gets smaller.)
I can hear the extended high pitched "noooo" from my old high school physics teacher.... the numerator and denominator are independent of each other.... Otherwise it's recursive, dependent on each other and not solvable.

Quote:
In saying that if we take my 1.5 liter power plant out and drop in that v12 I promise you my grams/mile goes up.
Please, stay focused.

Quote:
If your engine is consuming less fuel then it is producing less of those emissions
Fallacy
Small scooters are great at sipping fuel - but when some were tested, show terrible terrible emissions.

This is the whole reason why we use grams per mile as the standard metric. It statistically controls fuel consumption. I should ask (and I don't mean any insult), do you understand what a statistic control is and why it's important? I ask because your posts and units don't control these parameters....
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Old 12-02-2008, 06:29 PM   #58 (permalink)
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You really didn't even read the part about your cat not having an ECU?

You can solve the equation. P/v=p2/v2. If we know p,v,and v2 we know p2. p-v is a ratio. If we change one the other also gets smaller. they aren't variable. a gallon of fuel equals 20 lbs of CO2 and several other things in grams. PERIOD. your cat works to ensure that it puts out 20lbs of CO2 instead of 15 lbs of CO2 and a bunch of unburned fuel. that said as I said above, your cat doesn't have an ECU. It's job all the time is to clean out 95% of the emissions. so just because its permitted to create .07 grams per mile doesn't mean it is. its creating .07 grams/mile when you crank redline at full throttle(the point your engine consumes as much fuel as it ever will). Any time when its not redlined and full throttled its not cranking .07 grams. It's cranking less.

What you are trying to say is because there is a standard thats what it is. If I turn my car off and roll it down the hill it produces 0 grams per mile because it consumes no fuel(gravity is being discounted for right now as fuel).

grams of emissions are dependent on how much fuel your engine consumes when held equal.

Yes I know the controls are greater for less FE cars. They use more fuel, they produce more emissions(before it gets to the controls), the controls remove 95%, 5% gets through and it stays below .07 grams per mile unless you are redlining and full throttle then = .07 grams per mile.

Yes scooters do produce terrific amounts of emissions. My cousin owns a scooter store(40cc). They don't have any emissions controls because they qualify as a small engine(Briggs and Stratton have a huge lobby group to keep it that way).

So we'll compare my 35 mpg Del Sol to the 100 mpg scooter.

First to make this a comparison we need to take out my Cat. Now my car releases more emissions than it did with the cat.

We will use theoretical maximums for ease. 1 gallon = 20 lbs of CO2. We will just talk about CO2 to prove the point.
To travel 200 miles my car expends 5.7 gallons of gas and emits, 114 lbs of CO2.
to travel 200 miles the scooter requires 2 gallons and just 40 lbs are emitted.
The other pollutants that get filtered out arise from unburned fuel. so if we say 18 lbs of CO2 per gallon and 2 lbs of whatever else. . .
my car= 102 CO2 and 10 lbs of something else

scooter = 36 bs of CO2 and 4 lbs something else

Miles per gallon = Mi/Gallons

Grams per Mile = g/Mi

Grams per Gallon = g/Gallons

Miles per gallon multiplied by grams per mile = Mi/Gallons * g/Mi = (miles cancel) g/Gallons = grams per gallon.

It's very easy to insult your opponent and attack their character. It's more difficult to prove a point.
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Old 12-02-2008, 06:49 PM   #59 (permalink)
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Quote:
Originally Posted by tasdrouille View Post
Tell that to Energy Information Administration. It's their numbers against your eyeballing of the situation.
The Energy Information Administration can say whatever they hell they want. I'm telling you the reality at the pump. $1.91 for 87 octane vs $3.19 for diesel. You would have to be an idiot buy a diesel car around here.
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Old 12-02-2008, 06:55 PM   #60 (permalink)
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You really didn't even read the part about your cat not having an ECU?
I did read it - I didn't respond because it's further from the point.

I see the hangup - you're totally ignoring the emissions standards that I was referring to in my post that you responded to....

Tell me how many grams per mile of CO2 Tier II permits (pick any bin) and that should resolve all of this

Quote:
It's very easy to insult your opponent and attack their character. It's more difficult to prove a point.
Please don't take any of this as insulting.... But, it's very difficult to prove a point when you're arguments are off topic

We started with the alleged consumption hit from new TierII standards for diesels - you're arguing CO2 emissions. CO2 is not a part of of TierII emissions. NMOG, CO, NOx, PM, HCHO would be the ones. Yes, I will agree that CO2 is proportional to consumption - but, it's irresponsible to ignore everything else.

I stand by what I said originally when I jumped in
Quote:
So yes, you might take a consumption hit - no, you won't put out more pollutants. The emissions standards control that
Quote:
I hear you (by you, I mean in a general sense) saying that emissions standards are killing FE for diesels.... I'd believe you if it weren't for the fact that emissions standards are NOT killing FE as according to fuel economy testing
That was in response to this false statement
Quote:
If you can emissions control without negatively influencing my MPG by even a single drop fine. Otherwise its creating more pollution.

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