PRO: Diesels get great mileage. They typically deliver 25 to 30 percent better fuel economy than similarly performing gasoline engines. Diesels also can deliver as much or more fuel economy than traditional gasoline-electric hybrids, depending on the models involved and whatever rapidly developing automotive technology achieves.
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CON: Although diesel fuel used to be cheaper than gasoline, it now often costs the same amount or more. Diesel fuel is also used for commercial trucks, home and industrial generators, and heating oil, so as demand for diesel passenger vehicles grows, the price of diesel fuel is likely to continue to rise because of competition from those other users.
Even if the price goes up, diesel fuel would have to be 25 to 30 percent more expensive than gas to erase the cost advantage of a diesel engine’s greater fuel efficiency.
PRO: Diesel fuel is one of the most efficient and energy dense fuels available today. Because it contains more usable energy than gasoline, it delivers better fuel economy.
CON: Although diesel fuel is considered more efficient because it converts heat into energy rather than sending the heat out the tailpipe as gas-powered vehicles do, it doesn’t result in flashy high-speed performance. In some ways, a gasoline-powered engine is like a racehorse — high-strung, fiery, and fast — whereas a diesel engine is more like a workhorse — slower, stronger, and more enduring.
PRO: Diesels have no spark plugs or distributors. Therefore, they never need ignition tune-ups.
CON: Diesels still need regular maintenance to keep them running. You have to change the oil and the air, oil, and fuel filters. Cleaner diesel fuels no longer require you to bleed excess water out of the system, but many vehicles still have water separators that need to be emptied manually.
PRO: Diesel engines are built more ruggedly to withstand the rigors of higher compression. Consequently, they usually go much longer than gas-powered vehicles before they require major repairs. Mercedes-Benz holds the longevity record with several vehicles clocking more than 900,000 miles on their original engines! You may not want to hang onto the same vehicle for 900,000 miles, but longevity and dependability like that can sure help with trade-in and resale values.
CON: If you neglect the maintenance and the fuel injection system breaks down, you may have to pay a diesel mechanic more money to get things unsnaggled than you would to repair a gasoline system because diesel engines are more technologically advanced.
PRO: Because of the way it burns fuel, a diesel engine provides far more torque to the driveshaft than does a gasoline engine. As a result, most modern diesel passenger cars are much faster from a standing start than their gas-powered counterparts. What’s more, diesel-powered trucks, SUVs, and cars also can out-tow gas-powered vehicles while still delivering that improved fuel economy.
Diesel engines are back to popularity and the big issue for people thinking about buying a vehicle with a diesel engine is what does a diesel engine do? What are the benefits? Are there any drawbacks?
Well, diesel engines do have both advantages and disadvantages and it’s all about their engineering. Performance-wise, diesel engines do wonders in regard to power and speed.
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Fuel economy. Because diesel fuel stands as one of the best efficient, dense energy fuels, it brings to the table better fuel economy.
Durability. Diesel engines are engineered and built to take the punishment. They can hold up to higher compression. They’re like that Energizer Bunny commercial where it goes on and on and on. It can take hundreds of thousand of miles in longevity and thus need less repair.
Mileage. A diesel engine is legendary for excellent mileage. As mentioned before they deliver better fuel economy than the gasoline engine. Actually it’s about 25-30% better. They even beat out electric hybrids in some cases.
Tune ups. Since these engines don’t use distributors or spark plugs they don’t need ignition tune ups. Just think of the money you’re saving right there, not to mention the headache.
Now on the downside there are several drawbacks that one should be aware of.
Maintenance frequency. These engines need serious and dedicated maintenance regimens. Changing oil, changing oil and air and fuel filters.
Fuel costs. In the good ol’ days the diesel fuel was cheaper than gas. Nowadays the costs are the same and sometimes even higher.
Fuel injection maintenance. You have to keep up maintenance on the fuel injection system. If your fuel injection system is compromised you’re going to have to pay a pretty penny to get it fixed.
So as you can see, there are pluses and minuses to the diesel engine but it goes further than what’s listed above.
One has to take into account use. If you get a diesel engine, are you going to use it for daily use or recreation? Is your home area a challenge to drive through that either makes it a task to operate any vehicle and how will it affect a diesel engine? There are specific tools you need to have to maintenance a diesel engine. You’ll need to find a mechanic near you in case of emergency as well.
Diesel engines as mentioned earlier do get that mileage. With gas prices low, you end up saving even more with one of these engines. You can then use the excess savings for much needed things around the house or your business. Even though diesel fuel is matching regular gas and sometimes eclipsing it, your overall benefits are easy to see.
So when debating on whether you want to go diesel or not, sit down and do the math and check the statistics. The vehicle you’re looking at with the diesel engine has to be one that you can depend on for your home or business. You can’t just up and get any diesel engine that comes your way. Check with a specialist if you can to explain the specs of the vehicle and what you can expect. You now know that these engines are extremely durable and reliable, cost cutting, and powerful. With some good old fashioned responsibility, your diesel engine purchase can not only last you a long time, but it can save you money and worry along the way.
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