Monday, November 26, 2007

Hybrid vs Diesel

In these days of soaring gas prices, it seems that everyone is looking to increase their gas mileage. In the past, those looking to drive the most fuel-efficient vehicle had just one option: diesel trucks and cars. Diesel vehicles use significantly less fuel than cars that run on regular gas.

There is an option to diesel vehicles. Recently, hybrid vehicles have been appearing everywhere. No longer are they just slightly odd-looking compact cars. Hybrid technology can be found in everything from compact cars to SUVs. Are you better off with the old, diesel standby or do hybrid cars really offer more?

Diesel vehicles

For years, the gas-conscious consumer chose the diesel vehicle. These earlier diesels were generally noisier, dirtier and handled the road more poorly than their gas counterparts did. In fact, five states currently do not allow the sale of diesel vehicles due to strict emissions standards.

However, this image of the diesel vehicle is very outdated. Modern diesel vehicles are much cleaner than their earlier counterparts are. Low-sulphur diesel fuel and new technology that helps trap emissions particles are making diesel engines cleaner than ever before. In addition, modern diesel vehicles handle nearly as well as their gas-powered cousins and are less noisy as well.

Fuel efficiency is still paramount when it comes to driving a diesel vehicle. With their average nine miles per gallon increase over gas-powered vehicles, diesels are a viable option for the fuel-conscious consumer.

Hybrid vehicles

Hybrid vehicles are the newcomer to the mileage game. These vehicles run on a combination of gas and electric power, and they promise vastly increased gas mileage and lower emissions.

While these vehicles deliver on the promise, there are a few shortcomings as well. The first and most glaring disappointment is that many drivers find that the advertised mileage and the actual mileage the car achieves are vastly different.

For instance, the Toyota Prius advertises gas mileage of 55 miles per gallon, according to U.S. government reports. However, when Consumer Reports magazine tested the car under actual driving conditions, the mileage achieved was only 44 miles per gallon. While this is still excellent gas mileage, it is far less than advertised.

In addition, the sheer price of hybrid vehicles can be daunting. While a diesel vehicle generally costs an average of $1000 more than its gas-powered version, a hybrid vehicle costs several thousand dollars more than a gas-powered car. The Honda Civic Hybrid base price is $4800 more than the standard Civic with the same options and amenities.

Given that the gas mileage on the hybrid is about 30% greater than on the standard vehicle, it would take an average driver at today's gas costs more than twelve years to recoup the cost difference. However, one must consider that some of this additional cost can also be recouped with the one-time federal tax credit. In addition, some states and even employers offer rebates to those who drive hybrid vehicles.

Ford's Power Stroke Diesel Technology

Diesel engines have received a bad reputation in the United States due to the amount of emissions they give off. However, it seems like the wheel is indeed turning and diesel engines’ reputation is slowly changing as car manufacturers continually develop ways to equip their vehicles with a clean diesel engine.

One such company is the Ford Motor Company which has introduced their new Power Stroke diesel technology. This new one promises a good performance from the engine while keeping the emission level equal to that of a gasoline engine. The engine will be the workhorse of the new 2008 Ford F-Series Super Duty lineup and it already has received much praise for its fuel efficiency.

The massive 6.4-liter Power Stroke diesel engine has an improved performance over the previous diesel engines employed by Ford. The technology also reduces emissions and NVH or noise, vibration, and harshness. The high performance of the engine and its low emission are two things to like about it. But it is also important to keep in mind that this engine also has 25 to 30 percent better fuel economy rating than gasoline engines. In fact, the newer generation of clean diesel engines is taking over the European market and Ford hopes to do the same in North America. Ford hopes to launch the technology successfully since a large number of Super Duty buyers opt for a diesel engine under its hood.

One great thing about the engine is that it exhibits no turbo lag and according to Richard Truett, engineering reporter for Automotive News, “I have never felt that performance out of a diesel before.” This he stated after going 60 to 65 miles per hour while towing. He further said that he “can’t find anything to dislike about it (the engine)”. His rave review of the technology is shared by John Stewart, editorial director of Diesel World Magazine: “It’s a tremendously quiet engine. It has torque everywhere you look. The technology that they have brought to bear is the latest in the field. When you drive it you think, this thing is a great cruiser. We need to go on a trip with this.”

The people at Ford said that the Power Stroke diesel is the company’s cleanest and quietest pickup diesel ever. Its particulate emission, which in the past has given it a bad reputation, is reduced to almost the equivalent of gasoline engine emissions. It gives that clean emission while giving out 350 horsepower that would take a high performance disc brake and an EBC brake rotor to efficiently stop the vehicle. The engine also provides 650 lb-ft of torque at 2,000 revs per minute with the help of its two-stage turbocharger. The Power Stroke engine is the first pickup engine in the US to feature the common rail fuel injection system with piezo-electric injectors.

The development of the diesel engine was made possible with the help of Ford’s European connection. Power Stroke diesel Manager Enio Gomes stated that they have tapped the knowledge of the company’s European diesel experts in order to integrate the cutting edge technologies in the new engine especially the fuel injection system stated earlier. Another part that the European diesel engines experts help integrate in the new diesel engine is the particulate filter that significantly reduces the amount of emissions being released by the engine.

Ford is counting on their new diesel technology to propel the company to the top of the diesel engine equipped vehicle market which is expected to increase significantly in the next couple of decades. In fact, they have already revealed their plan of offering a Ford F-150 equipped with a diesel engine which will be another first for the company’s light-duty pickup series.