Gas or diesel engine? Is there really such a big difference between the two? For newbies, the difference probably won’t even be that noticeable. For those more experienced with cars however, the difference will definitely be evident.
Go the distance
For long distance driving or even just driving across the highway, it’s always diesel engine that has become the weapon of choice because of its higher compression ratio and more efficient combustion system that gas engines cannot match. One can’t also discard the fact that diesel is cheaper than gas; and with today’s ever increasing price of fuel, practicality plays a big key for the choice of engine.
The average thermodynamic efficiency (the amount of work the engine produces from the fuel) of diesel engine is 15% percent higher than gas engines. Sure, the diesel engine is less environmental friendly than gas engine but the efficiency gains of the engine itself is much more distinguishable for these engines.
Don’t dismiss gas engines just yet
But just when you think choosing the diesel engine is a no-brainer choice, think again. With the help of technology, the efficiency difference between gas and diesel engine is now shrinking. Improvements in engine parts such as camshaft timing, direct fuel injection, and turbo chargers have helped made the gas engine become more efficient.
Research today are pitting the gas engine to become more efficient than diesel engine by 10% in the next 10 years. With the way technology is advancing, gas engine could overtake diesel engine in terms of efficiency soon – this is great news, not only for the market but for the environment as well.
But then again, don’t expect diesel engine manufacturers to just do nothing. Although there is little left to improve on the efficiency of diesel engine, diesel engine will still have some advantage over the fact that diesel fuels contains 14% more energy by volume than gasoline. With oil in the world starting to become scarce, it’s really a matter of who has the better research on efficiency.