Even though they accomplish the same thing, providing power or backup power when needed, diesel and gasoline generators have some distinct differences between them. The sections below outline some of the differences between a diesel and a gasoline generator.

Fuel Consumption

When it comes to fuel consumption, diesel generators burn about half the fuel that a gasoline generator does. This advantage can be offset somewhat depending upon what the current price of diesel is, but for the most part, a diesel generator costs less over time to use.

Another difference between a diesel-fueled generator and a gasoline-powered generator is fuel combustion. Gasoline generators use a sark plug to ignite the fuel once in the combustion chamber. Diesel generators, on the other hand, create combustion through the compression process itself, which heats the fuel, thus igniting it. This is a lot safer than a gasoline engine, since there is no spark that could cause an explosion.

Portability

The portability of gasoline and diesel generators is generally the same, with both types coming in models that can be easily moved to a location where they are needed most. Overall, a diesel generator provides more power while using less fuel, making it a better investment in a portable form, even though gasoline models tend to be a little more lightweight. Another plus for a gasoline generator is that fuel can be located almost anywhere, although diesel pumps at fuel stations are very common.

Durability

When comparing the durability of a gasoline generator and a diesel generator, a diesel generator requires less maintenance than a gasoline generator. In addition to this, the cost of maintaining a diesel generator is less than for a gasoline generator. Gasoline generators also tend to run hotter than their diesel counterparts, which leads to more wear and tear on the gasoline generator parts. Another cause of wear and tear on a generator’s engine is knocking caused by the fuel/air mixture present in a gasoline generator’s cylinder prematurely igniting, a problem not found in diesel generators since no fuel is actually injected into the cylinder, only air.

Safety

As stated earlier, gasoline generators use spark plugs to ignite the fuel/air mixture used in the combustion process. For obvious reasons, this can pose a danger if the equipment is not properly maintained. Another benefit of using diesel is its higher flashpoint, which means that it takes more heat to actually ignite any spilled fuel.

The noise level produced by generators is also of concern, especially on a diesel generator, as diesel engines tend to run louder than more conventional gasoline engines. Newer generators, both gasoline and diesel, are quieter than their older predecessors. Placing the generator in a soundproof box also helps reduce the overall noise pollution produced, although owners should properly ventilate the generator to reduce overheating.

Maintenance

When shopping for generators, consider maintenance levels between generator types. The higher overall heat at which a gasoline generator operates means that the engine parts need replacement more often than those of a diesel generator. With both types of generators, it is important to have regular maintenance performed. This includes changing any filters and the engine oil, as well as running the engine until it is empty if the generator is not used for an extended period.

Cost

One final difference between a gasoline and a diesel generator is cost. A comparable diesel generator typically costs more than a gas generator, mainly due to its more robust nature. Diesel generators are easier to maintain and last longer than gasoline generators of the same power production level. The cost of a diesel generator can translate into real savings over time if properly maintained. A gasoline generator can also last if properly maintained, but due to the more complex nature of a gasoline engine, and the heats involved, eventually a gasoline generator breaks down and needs replacement.

Conclusion

Generators allow business owners or individuals to power their homes or businesses during an outage or emergency, such as from the loss of power during inclement weather. They also give those who participate in outdoor activities, such as camping, picnicking, or recreational vehicle use, access to some of the comforts of home. Depending on the output of the generator, this can include numerous kitchen appliances, bathroom accessories like hair dryers, TVs, radios, and more. Generators are also the perfect solution for powering a business site that does not have access to electricity. Knowing the difference between a gasoline and a diesel generator is a good first step in the buying process. Diesel generators are generally more productive and affordable over the long run, but gasoline generators are quieter and have a few other advantages. It is important for buyers to consider this crucial decision before purchasing a generator.