Diesel engines generally have a reputation for being louder, more expensive and more harmful to the environment than gasoline engines. Many of these comparisons are based on outdated notions of how diesel engines operate; changes in manufacturing have actually evened the playing field between gas and diesel engines. And depending on the state of the petroleum industry, diesel engines can even save more money on fuel than gasoline engines. For these reasons, it may make sense to switch over to a diesel engine. But before you make the switch, you have to consider the pros and cons of diesel engines before deciding which one is right for you.
Better Highway Mileage
When driving in the city, diesel engines perform about the same as gasoline engines. But when driving on the highway diesel performance vastly overshadows gasoline. Diesel engines have fewer moving parts and more torque, allowing them to use their fuel more efficiently when accelerating. When driving for long distances on the highway, this translates to much better gas mileage than comparably-sized gasoline engines. Additionally, having fewer moving parts means that they have a lower risk of breaking down and fewer parts that need to be repaired. So if your commute involves a lot of highway driving, you may benefit from switching to a diesel engine.
Bigger Car Models
While car manufactures have diversified the kind of cars that run on diesel engines, the majority of available U.S. models are still either pickup trucks or SUVs. If you already drive an SUV or pickup truck, either for recreational or job-related reasons, switching to a diesel engine might benefit you. The increased torque would make pulling trailers or hauling loads of supplies easier, and the increased gas mileage on the highway would give your car a leg up on gas-engine SUVs, which get notoriously low gas mileage.