Articles Index
What is a Clean Diesel?
Clean diesels utilize advanced fuel delivery and exhaust scrubbing technology that take advantage of the 15 ppm sulfur content of ultra low sulfur diesel (ULSD). Learn more here.
Global Warming and Vehicles
Global warming. Yes, scientists have confirmed it--global warming is happening as we speak. Learn more about the major contributors to the overload of greenhouse gas emissions and carbon dioxide.
Clean Diesel Tax Credits
Check out which diesel vehicles qualify for the Advanced Lean Burn Technology Motor vehicle tax credit.
How Does Regenerative Braking Work?
Learn how hybrids and all-electric vehicles create their own power for battery recharging through a process known as regenerative braking.
How Electric Motors and Generators Work
Electric cars hybrids rely upon electric motors for propulsion and assistance--learn more about how these electric motors and generators work.
How Inverters and Converters work in Hybrids and EVs
Learn how inverters and converters work to condition electricity for power and recharging in hybrids and EVs.
How Safe is Natural Gas?
Do the physical properties of natural gas and the design characteristics of natural gas make it a safe motor fuel?
2008 Nissan Altima Hybrid Update & Log
After adding a hybrid to our personal alt fuel fleet, we've kept monthly log entries on its current status. Check out how it's performing: mileage, fuel economy, and maintenance/repairs.
What is a Two-Mode Hybrid?
Find out what a two-mode hybrid is, how two-mode hybrids work, and what makes them different from full hybrids.
What is Energy?
Learn how the law of energy applies to hybrid and all-electric cars.
Natural Gas Vehicles (NGVs) Available
Learn more about the current availability of compressed natural gas (CNG) vehicles.
Hybrids: The Real Deal or Marketing Hype
Are hybrids just more marketing hype--or are they the real deal to saving fuel and emissions?
Alternative Fuel Interview
Check out the Q & As from when we were interviewed by a high school student working on an alt fuel research report.
HCCI - Homogeneous Charge Compression Ignition
It's diesel compression ignition technology for gasoline engines. Learn how and why this old yet new fuel-saving technology is on the come back, along with its advantages and disadvantages.
What is a Flywheel Hybrid?
Learn more about a flywheel hybrid, a hybrid car with a flywheel storage device.
Hybrid Buying Guide – Reviews and Photos
Take a gander through these pictures and test drives for a first-hand look at the available and up-and-coming hybrids.
Honda Civic EX versus Honda Civic Hybrid Fuel Mileage Comparo
The rubber hits the road in Scott's driving testorama in which his four tests provide a real life head-to-head comparison of the 1.8-liter 4-cylinder Honda Civic vs. the 1.3-liter Honda Civic Hybrid.
Hybrid and Alternative Fuel Vehicles for 2009
It's the one stop for all your 2009 hybrid car and alt fuel vehicle digital tire kicking: Check out the 2009 cars, trucks and SUVs in hybrid, biodiesel and diesel, electric, flex-fuel, propane and natural gas form.
Propane Vehicles Available
Learn more about the availability of propane powered vehicles for 2008.
BMW Hydrogen 7
Find out about the BMW Hydrogen 7 bi-fuel car. This is a luxury 7 series BMW that is capable of running on both hydrogen and gasoline.
Accidentally Fueling a Diesel with Gasoline
It can happen to anyone, learn about the problems associated with mis-fueling a diesel vehicle.
How Exactly Do Fuel Cells Work?
How do fuel cells make electricity? What is the fuel for fuel cells? What kinds of fuel cells exist? Find the answers here.
How Do Plug-in Hybrids Work?
Plug-in hybrids take electric vehicles to the next level. Plug-ins are designed to rely predominantly on the electric motor for propulsion, with the internal combustion engine as back-up. Learn more about how they work.
Reader Question: Does Acetone Increase Fuel Mileage Economy?
A reader wonders if acetone can be added to a tank of gasoline to increase fuel economy—here’s our answer.
Hybrid Tax Credits
Find out how much of a federal tax credit you're due if you buy a hybrid in the United States.