Copyright © Donovan Baldwin Lube2005.com The term that really applies is HEV, which stands for hybrid electic vehicle. These are the most fuel efficient vehicles available for most of us. While actual configuration may vary due to the design intentions of the manufacturer, they generally combine a small (by regular vehicle standards) gasoline engine with an electric motor. While the gasoline engine does most of the locomotion at highway speeds, when less fuel is required, it also is available to provide the extra power that the electric motor cannot provide or sustain for long. The electric battery/motor combination can start the car moving in some instances, maintain systems without the gasoline motor having to idle at stops such as lights and in drive thrus, and can assist the gasoline motor as it propels the hybrid vehicle down the road. During the rolling of the vehicle, particularly in coasting situations, the battery which provides the electric motor with power is recharged. When braking at slower speeds (in-town, stop-and-go), regenerative braking is generally used to stop the car rather than the brakes themselves. In regenerative braking, the electric motor actually changes is polarity, becoming a electric generator which recharges the battery. This change from motor to generator creates a reverse torque which is used to slow and stop the vehicle. At highway speeds, normal braking occurs. At times, the charge within the battery may dip below the needed level, and at these times, the small gasoline engine automatically comes on to recharge the battery. Even with hybrids, however, there are different vehicle types to meet the needs of the consumer. There are hybrid SUVs, Trucks, and small and mid-size sedans such as the Toyota Prius, which is one of the most fuel efficient hybrid vehicles available, getting on average about 50 MPG. ABOUT THE AUTHOR --------------------------------------------- Donovan Baldwin is a Dallas area writer. A graduate of the University Of West Florida (1973) with a BA in accounting, he is a member of Mensa and has held several managerial positions. After retiring from the U. S. Army in 1995, he became interested in internet marketing and developed various online businesses. He has been writing poetry, articles, and essays for over 40 years, and now frequently publishes articles on his own websites and for use by other webmasters. He has blogs on the subjects of weight loss and health, hybrid cars and alternative fuels, and internet marketing and related business topics. --------------------------------------------- NOTE: You have full permission to reprint this article within your website or newsletter as long as you leave the article fully intact and include the "About The Author" resource box. Thanks! :-) --- Save on fuel and maintenance costs with Amsoil synthetic motor oil.

Just an update.  I learned that in hot Texas Summers, your fuel economy suffers a small amount, but I am still getting over 45 MPG.

A reminder:  When you compute MPG with a hybrid, you are actually getting BETTER MPG than the numbers show, because you are not idling the engine at stop signs and stoplights.  I have gone through an entire parking garage using the battery power and not burning a drop of gas.

Another update:  Still getting great gas mileage and great service from Texas Toyota of Grapevine thanks to Michael Ruiz