Gasoline Engine Fuel Efficiency Catches up with Diesel Technology
April 3, 2013 9:30 AM
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Gap in fuel efficiency and torque between diesel and gasoline engines is dwindling
Diesel engines are very popular around the world, and are used in both passenger and commercial vehicles due to their efficiency advantages over gasoline engines. In the U.S. passenger vehicle market, they’re largely relegated to heavy-duty pickup trucks (although companies like
Volkswagen have maintained a diesel engine lineup for a few decades
However, diesel fuel averages roughly $0.36 a gallon more than regular unleaded gasoline in the U.S., which can erase some of the cost advantage.
While many diesel-powered vehicles do have better fuel economy than comparable gasoline vehicles, even that benefit is beginning to disappear. In spite of this, many automakers are preparing to launch diesel-powered cars in the U.S., including
Volkswagen Passat TDI
reports that diesel engines in cars no longer have a major advantage in torque and they don't offer significantly better fuel economy. Technology for traditional gasoline engines is improving and the gap in fuel efficiency and torque has vanished due to the proliferation of direct injection and turbocharging.
With this in mind, Ford, Toyota, and Hyundai are staying out of the diesel-powered car market; instead focusing hybrid technology. Hyundai Motor America CEO John Krafcik says that the cost of adding hybrid technology for the consumers about $1,500 compared to a cost of about $5,000 to add diesel power.
"When we ask if consumers are willing to pay that, they ask, 'What are you smoking?'" said Krafcik. "We all have great diesel engines available to us, but gasoline engines are growing."
However, Ford says that it is ready to begin offering diesel-powered cars in the U.S. if there is enough
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Cool weather performance?
4/3/2013 1:34:40 PM
Since October, people in my area (Saskatchewan, Canada) with diesel engines have been plugging their trucks in and only now, with the snow starting to melt, have most of them stopped plugging in. Even brand new diesel half tons going through their first winter were plugged in every night all winter long.
Few people with gasoline engines need to plug in at all any more because engines have improved and winters have warmed up so much since my childhood that we now only hit -30 (Celsius) a handful of times each winter. However, the idiots who bought diesel half tons start plugging in when zero-ish temperatures begin in October.
"So if you want to save the planet, feel free to drive your Hummer. Just avoid the drive thru line at McDonalds." -- Michael Asher
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