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Question for Auto Mechanics

 
Anonymous Coward
User ID: 27083745
United States
11/05/2012 06:27 PM
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Question for Auto Mechanics
In the USA they make cars for export only that get 65 MPG yet we can't buy them because BIG OIL would lose money.

My Question: What makes these cars get better gas mileage then the ones on car lots now in the US?




The 65-mpg car Ford won't sell in US

[link to articles.moneycentral.msn.com]
Anonymous Coward
User ID: 24129600
United States
11/05/2012 06:36 PM
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Re: Question for Auto Mechanics
VW makes a 1.7L diesel jetta and passat (iirc) in the states that get 75mpg. Cant buy it here though, they are all for export. You can call any dealer and they will tell you this info. Its infuriating! They claim that the emissions are beyond our standards. What they wont tell you is that they are the same, but they do the math differently. Asses!
bill shitters 1.2

User ID: 19820209
United Kingdom
11/05/2012 06:48 PM

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Re: Question for Auto Mechanics
Get your self any european car up to 2 liters and it can do good mileage espesialy if diesel but a 6 speed manual gear box help as well
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bill shitters 1.2

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11/05/2012 06:53 PM

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Re: Question for Auto Mechanics
I can get anything from your link. But suspect its a ford fiesta with the diesel engine of 1.4 to 1.6 capacity going by reports you don't get too many infadels in them
The retired thread killer


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Anonymous Coward (OP)
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11/05/2012 06:57 PM
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Re: Question for Auto Mechanics
VW makes a 1.7L diesel jetta and passat (iirc) in the states that get 75mpg. Cant buy it here though, they are all for export. You can call any dealer and they will tell you this info. Its infuriating! They claim that the emissions are beyond our standards. What they wont tell you is that they are the same, but they do the math differently. Asses!
 Quoting: Anonymous Coward 24129600


Very interesting!

They claim that the emissions are beyond our standards.

Pinocchio's nose grows........
Ambassador Grantor

User ID: 1177381
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11/05/2012 06:57 PM
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Re: Question for Auto Mechanics
In the USA they make cars for export only that get 65 MPG yet we can't buy them because BIG OIL would lose money.

My Question: What makes these cars get better gas mileage then the ones on car lots now in the US?




The 65-mpg car Ford won't sell in US

[link to articles.moneycentral.msn.com]
 Quoting: Anonymous Coward 27083745


Most engines have always been able to do 100mpg.

Yes... the manufactures are either inbed with B Oil... or........ just maybe.... the same groups of corporations OWN both Big Oil and Big Auto...?!?!

Hummm????
Anonymous Coward (OP)
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11/05/2012 06:59 PM
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Re: Question for Auto Mechanics
I can get anything from your link. But suspect its a ford fiesta with the diesel engine of 1.4 to 1.6 capacity going by reports you don't get too many infadels in them
 Quoting: bill shitters 1.2


Just google: The 65-mpg car Ford won't sell in US


Thanks for the input!
Anonymous Coward (OP)
User ID: 27083745
United States
11/05/2012 07:01 PM
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Re: Question for Auto Mechanics
In the USA they make cars for export only that get 65 MPG yet we can't buy them because BIG OIL would lose money.

My Question: What makes these cars get better gas mileage then the ones on car lots now in the US?




The 65-mpg car Ford won't sell in US

[link to articles.moneycentral.msn.com]
 Quoting: Anonymous Coward 27083745


Most engines have always been able to do 100mpg.

Yes... the manufactures are either inbed with B Oil... or........ just maybe.... the same groups of corporations OWN both Big Oil and Big Auto...?!?!

Hummm????
 Quoting: Ambassador Grantor


So, is it the carburetor?
bill shitters 1.2

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United Kingdom
11/05/2012 07:02 PM

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Re: Question for Auto Mechanics
The trick with cars is they have got to move to give good millage

Usa millage is better in the eec as the uk gallon is a pint bigger
Also euro cars have the option of stop start gimmic
The retired thread killer


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willrocks

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11/05/2012 07:07 PM
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Re: Question for Auto Mechanics


Chrit

User ID: 27088294
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11/05/2012 07:28 PM

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Re: Question for Auto Mechanics
Diesel.

Problem with diesel is we now mandate that all new cars run low sulfur diesel in the US, we export all the diesel from Alaska to other countries like japan because it has a high sulfur content.

Basically there is now a shortage of low sulfur diesel & that is what has driven up diesel prices in the US. As we get better and better at cracking a barrel of oil we can yield more and more gasoline from each barrel but with diesel there is an exact amount of diesel that can be drawn from each barrel and that can never change. Europe loves our exports of diesel and more than half of all European cars sold last year were diesel cars because they do not have the sulfur regulations we have.



One other big deal is people do not want a car in the US that does 0-60 in 19 seconds when you floor it, and the gas mileage sucks worse than a normal car when you are beating on a car like that. Now put 5 average Americans in the car and watch your 0-60 turn in to 35 seconds or more.
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Anonymous Coward
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United States
11/05/2012 07:42 PM
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Re: Question for Auto Mechanics
what is T R A N S P O R T A T I O N and why is it so inportant

are you seeing now that it is a scam

There realy isnt a need to go that fast that fare for any other reson than enjoyment
Anonymous Coward
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Germany
11/05/2012 07:51 PM
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Re: Question for Auto Mechanics
web.vw.com/tdi-clean-diesel/?context=showroom#tdi-models

These are the same diesel engines you get in germany too. Its the 2.0l TDI, which i personally drive. There is no difference.

The main problem in my opinion is, that most manufacturers think, that only big engines up to 6 cylinders will sell in the U.S.

For VW for example this strategy is extrem risky because they have only 4 zylinders and they offer you the biggest ones they have. And next problem is, that diesel in cars are not very popular in the U.S. despite its low fuel consumption.

This is the reason why you can't get for example the 1.6 TDI in the U.S.

The only thing you can do as a costumer is repeatedly asking for these small engines. Perhaps they will change their strategy in the near future.
EJ25LVR

User ID: 514219
United States
11/05/2012 08:06 PM
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Re: Question for Auto Mechanics
well for one they make the fuel/air ratio really lean which means less fuel is injected into the cylinder but leaning the air/fuel ratio out also raises egts exhaust gas temperatures. if leaned out to much its very bad for the engine.

ever been in a car going up a hill while accelerating and hear small pinging noises coming from the engine ? that's called detonation which mean the temps in the cylinder are so hot that the air fuel mixture is igniting from the hot temps before the spark plug has a chance to ignite it.

the only way to correct it is to use a higher octane gasoline or have the engine tuned to run a little richer which will cool the temps inside the cylinder down but in return running it more rich means more gas usage per injection.

detonation will over time melt a hole right through a piston.

diesels have no problem dealing with the same issue because the high compression ratios of a diesel engine make cylinder temps extremely hot and is on some diesels the only ignition source that's needed but most have glow plugs to ensure it ignites...

there are lots of things that make and engine more efficient like variable valve timing, how complete the air/fuel combination combusted, egr valve (exhaust gas recirculation) valve which just takes some of the exhaust as its going out of the cylinder and reroutes it back through the intake manifold which imo sucks because it injects hot exhaust gas into the incoming clean and cool intake air.

by the way all cars make a little more horsepower in the winter or in cooler regions because cold air is more dense.... denser charge of air into the engine makes a little bit bigger boom than a warm or hot charge of air.

the cars computer also has a lot to to with efficiency since its always monitoring multiple thing and adjusting on the fly how much fuel to give the engine according to the fuel maps programmed in the cpu by the manufacturer.

one thing about diesels also is that they have no butterfly valve/throttle body like a normal gasoline engine.

a diesel engine is basically full throttle all the time but the fuel injected into the cylinders directly controls engine rpms.

a normal gas engine needs to control both air and fuel at the same time.

Last Edited by EJ25LVR on 11/05/2012 08:11 PM
Wherever you go,there you are.

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Anonymous Coward
User ID: 1152779
United States
11/05/2012 08:15 PM
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Re: Question for Auto Mechanics
Good question.

It is not a big oil conspiracy, it has to do with emissions.

Odd as it may sound, it takes more fuel to run a clean exhaust.

The car uses fuel to run the engine and it uses fuel to keep the catalyst hot.

if you want to blame somebody, blame the green-tards. If they roll back emission standards ten years the exhaust would still be remarkably clean and American cars would get better gas mileage.

The problem is ignorance to chemistry. Sure we can make cars virtually non polluting, but the cost is they use more fuel.
EJ25LVR

User ID: 514219
United States
11/05/2012 08:21 PM
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Re: Question for Auto Mechanics
Good question.

It is not a big oil conspiracy, it has to do with emissions.

Odd as it may sound, it takes more fuel to run a clean exhaust.

The car uses fuel to run the engine and it uses fuel to keep the catalyst hot.

if you want to blame somebody, blame the green-tards. If they roll back emission standards ten years the exhaust would still be remarkably clean and American cars would get better gas mileage.

The problem is ignorance to chemistry. Sure we can make cars virtually non polluting, but the cost is they use more fuel.
 Quoting: Anonymous Coward 1152779


the more fuel that's injected the cooler the exhaust gas temperatures are. meaning the engine runs rich.

the less fuel that's injected the hotter the exhaust gas temps are. meaning the engine is running lean.
Wherever you go,there you are.

John Doe: Wanting people to listen, you can't just tap them on the shoulder anymore. You have to hit them with a sledgehammer, and then you'll notice you've got their strict attention.

I have half a mind to head down to Washington and shit on the White House lawn.

Brick Top: Do you know what "nemesis" means? A righteous infliction of retribution manifested by an appropriate agent. Personified in this case by an 'orrible cunt... me.
Anonymous Coward (OP)
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11/05/2012 08:53 PM
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Re: Question for Auto Mechanics
Thanks for all the answers and videos!

What is the best modification to get more mpg?
Anonymous Coward
User ID: 1152779
United States
11/05/2012 09:02 PM
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Re: Question for Auto Mechanics
Good question.

It is not a big oil conspiracy, it has to do with emissions.

Odd as it may sound, it takes more fuel to run a clean exhaust.

The car uses fuel to run the engine and it uses fuel to keep the catalyst hot.

if you want to blame somebody, blame the green-tards. If they roll back emission standards ten years the exhaust would still be remarkably clean and American cars would get better gas mileage.

The problem is ignorance to chemistry. Sure we can make cars virtually non polluting, but the cost is they use more fuel.
 Quoting: Anonymous Coward 1152779


the more fuel that's injected the cooler the exhaust gas temperatures are. meaning the engine runs rich.

the less fuel that's injected the hotter the exhaust gas temps are. meaning the engine is running lean.
 Quoting: EJ25LVR



yes, but a lean burn produces NOx. NOx in the lower atmosphere causes acid rain.

To get rid of the NOx, you run a rich mixture. ... you then get hydrocarbons ...Then to get rid of the hydrocarbons you process the exhaust through a three way catalyst. You need the catalyst to stay hot all the time so you introduce some extra fuel into the exhaust.

In California, the exhaust is cleaner than the air going into the engine.
EJ25LVR

User ID: 514219
United States
11/05/2012 09:21 PM
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Re: Question for Auto Mechanics
Thanks for all the answers and videos!

What is the best modification to get more mpg?
 Quoting: Anonymous Coward 27083745


honestly a custom fuel map for the cpu. they make programmers that you can just plug into the obd2 port under the dash and it will re-flash the cpu with all sorts of pre installed maps specific for most vehicles.
Wherever you go,there you are.

John Doe: Wanting people to listen, you can't just tap them on the shoulder anymore. You have to hit them with a sledgehammer, and then you'll notice you've got their strict attention.

I have half a mind to head down to Washington and shit on the White House lawn.

Brick Top: Do you know what "nemesis" means? A righteous infliction of retribution manifested by an appropriate agent. Personified in this case by an 'orrible cunt... me.
~IS~

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United States
03/01/2013 10:50 PM
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Re: Question for Auto Mechanics
get a machine shop to build you a better mist injector,then regulate the air flow different.

A car that ran on more fumes then fuel would be better.
~IS~

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United States
03/01/2013 10:52 PM
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Re: Question for Auto Mechanics
higher fuel pressure with a smaller mist into the cylinders........

The air flow should still work the same... the fuel pressure and type of injectors are the problem in the u.s
Unixlike

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03/01/2013 10:57 PM
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Re: Question for Auto Mechanics
I would suspect safety standards for one thing. Safer means added weight to some extent. Also, size and power. Americans don't want tiny little cars that take 10 seconds to reach 40mph at full throttle. Actually, around here driving a car like that could be dangerous. I wouldn't want to pull into traffic in a car that couldn't get up to speed.

We drive farther than Europeans. For many of us our daily commuting distance is far enough to cross half way across many european countries. How many fat americans want to do that in a 52 horsepower tin can?
one with the sun
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Australia
03/01/2013 11:01 PM
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Re: Question for Auto Mechanics
Thanks for all the answers and videos!

What is the best modification to get more mpg?
 Quoting: Anonymous Coward 27083745


At the risk of getting banned The best mod would be diff gears.

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