Posts Tagged 'mpg'

More Volkswagen “News”

What better way to follow up a Volkswagen post than with another Volkswagen post? It’s “news” because it happened back in March.  At the Geneva Motor Show, Volkswagen unveiled a “Dual-Fuel” Passat that can either be run on natural gas or conventional gasoline. It is still a prototype, but it provides flexibility with regards to fuel supply. And if run only on natural gas, it reduces emissions compared to regular gasoline.

http://www.greencarcongress.com/2008/03/vw-introduces-d.html

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The People’s Gas Mileage

From the Wired Auto Blog: The people’s car is taking the lead in high gas mileage vehicles. The “One-Liter” is a 660 lbs. 2 seater Volkswagen that gets 235 miles per gallon. It achieves this extremely low weight and high gas mileage with a carbon fiber body mated to a highly efficient one liter engine. VW had planned to hold off until 2012 to produce the vehicle citing the high cost of the carbon fiber. Since the carbon fiber technology has developed so quickly thanks to it’s use in many industries, including aerospace, the price of the material has come down to reasonable levels. Volkswagen only plans on producing small numbers of this niche vehicle, but it is a great study in what uber-high gas mileage requires.

http://blog.wired.com/cars/2008/07/laugh-at-high-g.html

2,843 MPG

Quadruple Digit fuel efficieny? At Shell America’s 2008 Eco Marathon, student teams competed for the title of most fuel efficient vehicle. These experimental gas sippers are more closely related to go-karts than actual passenger vehicles, but it’s a cool exercise in efficiency and design.

http://ecomodder.com/blog/2008/04/13/shell-americas-eco-marathon-sets-2843-mpg-record/

http://www.autobloggreen.com/2008/04/13/new-record-at-shell-eco-marathon-2-843-mpg/

Idling Vehicles

From our weekly email:

This week’s green tip: Waiting in line in your car? Shut off your engine if you are in a drive-through. Running your engine while standing still gives you a effective mpg of 0, and exposes you to more toxic exhaust gases then if you were moving.

Let’s break this down. Fuel Efficiency, or your mpg, is computed by measuring how many miles you have traveled on one gallon of gas. If you are standing still while burning that gas, you are getting zero miles to the gallon. If you are stopped for more than 30 seconds, you use more gas idling than turning the car off and back on.¹ Besides costing you money and creating unneccesary pollutants, it can also be hazardous to your health.

CTA found that exposure to most auto pollutants, including volatile organic compounds (VOCs) and carbon monoxide (CO), is much higher inside vehicles than at the road side. VOCs and CO are linked to serious health problems–like respiratory infections and cancer–are known to shorten life. The highest exposure occurs when sitting in traffic congestion on highways or in a line-up of idling vehicles at a school or drive-through. From: http://www.hcdoes.org/airquality/Anti-Idling/idle.htm

Granted, reducing your exposure to exhaust gases by turning of your engine is much more effective if you are the only person in line. Even so, your car is still contributing to that cloud hanging around the McDonald’s drive through and it can only help you (and the environment) if you switch off the car.