Diesel engines are more fuel-efficient and have more low-end torque than similar-sized gasoline engines, and diesel fuel contains roughly 10% to 15% more energy than gasoline. So, diesel vehicles can often go about 20% to 35% farther on a gallon of fuel than their gasoline counterparts.
Subsequently, one may also ask, why diesels are better than gas?
They are also used because of their reliability--a diesel engine runs at a much slower RPM (revolutions per minute) than a gas engine, therefore there is less wear and tear and the life cycle of the engine is longer. Increased thermal efficiency also translates to more power and torque.
Similarly, why is diesel more expensive than gas Canada?
Taxes. Diesel fuel is taxed at a higher rate than gasoline. It is winter, demand is higher. Diesel fuel is the same as home heating oil; i.e., your home's oil furnace will run just fine on “diesel fuel” and your vehicle will also run on “home heating oil”.
What are the disadvantages of diesel?
The major disadvantage associated with a diesel powered vehicle is the upfront cost. While it's true that diesel engines do get better MPG than gas powered engines, this is offset because diesel cars are more expensive than their gasoline powered counterparts.
How long will a diesel engine last?
The costs will average out over the lifetime of the vehicle, at least somewhat, and the extra power can help significantly. A gasoline powered truck can run for 200,000 miles. Conversely, a diesel truck has a longer lifespan and can run for at least 500,000 and as much as 800,000 miles.