Fuel economy thread

[henk4]

I get about 4.5l/100kms on my commute. The bike is rather low-tech...

my bike is high tech, zero emissions, except my sweat.

[pimento]

my bike is high tech, zero emissions, except my sweat.

Oh, my other other bike is that, but I emit too much sweat to ride it to work. We're moving before the end of the month though, so I'm planning on cycling at that point.

[jediali]

my bike is high tech, zero emissions, except my sweat.

Not exactly

Based on the average person having a breath with the volue of 500ml (0.5l) and normal intake of breath is normal atmospheric composition, as such contains 0.0360% CO2 or 0.18ml of CO2 intake. However we breathe out about 5% CO2 or 25ml with an average of 13,000 breaths a day. Thats 325,000ml (325L )of CO2 Which means by the end of the day, a person on average will exhale 1kg of CO2. Now add there are 6 billion people alive we can say humans exhale 6 billion kg of CO2 a day.

quoted from somewhere probably unreliable...

[henk4]

Not exactly

Based on the average person having a breath with the volue of 500ml (0.5l) and normal intake of breath is normal atmospheric composition, as such contains 0.0360% CO2 or 0.18ml of CO2 intake. However we breathe out about 5% CO2 or 25ml with an average of 13,000 breaths a day. Thats 325,000ml (325L )of CO2 Which means by the end of the day, a person on average will exhale 1kg of CO2. Now add there are 6 billion people alive we can say humans exhale 6 billion kg of CO2 a day.

quoted from somewhere probably unreliable...

I would have produced that irrespective whether I ride a bike or not, isn't it?

[pimento]

Presumably the exertion would make one breathe harder and therefore emit more CO2. Probably not much more though.

[henk4]

Presumably the exertion would make one breathe harder and therefore emit more CO2. Probably not much more though.

let's try to calculate the marginal output increase co-efficient then....

[Ferrer]

Yeah you see, this is where V8s are far more interesting than mpgs...

[henk4]

Yeah you see, this is where V8s are far more interesting than mpgs...

well, in a bike....

[Ferrer]

14,4L/100km (16mpg US/20mpg UK) in the muscle car. So yes it does drink fuel like a proper muscle car.

[Ferrer]

13,8L/100km (17mpg US/20mpg UK).

I'm saving fuel!

Or something.

[jcp123]

Got 44,4mpg (5,3l/100km) in my fiancee's Echo last week

[Ferrer]

11,7l/100km (24mpg UK/20mpg US). And this new tank will probably be even better.

At this rate I will beat diesels!

Or something.

[henk4]

11,7l/100km (24mpg UK/20mpg US). And this new tank will probably be even better.

At this rate I will beat diesels!

Or something.

I'll be back in June....

[royalina]

it boosts the octane quickly, easily, without as much refining of the gas, but the O2 sensors, and fuel injection systems need to be re-callibrated. ...............

[Commodore GS/E]

I hate ethanol now.

I don't know if you have something comparable in your countries, too, but on 1.1.2011, our government introduced a new law that says that at least 10% of all sold fuels have to be E10 (fuel with 10% ethanol). The petrol stations HAVE to sell the amount of fuel required to meet the regulations, but E10 is more expensive to produce than regular fuel. But because people tend to buy the cheapest fuel available, they are raising the prizes for regular fuels to make it unattractive compared to E10.
The problem is that many cars can't even run on E10 because the high ethanol percentage ruins regular engines. But even if you ignore this and the point that E10 isn't as environment-friendly as it may seem, there is one very significant problem: consumption.
First test of independent automotive magazines have shown that cars that run on E10 consume more than 10% more fuel and lose significant amounts of power.
The real problem is that we can't even blame our government. They had to do so because they had to fulfill the EU regulations.