Diesel Generators vs. Petrol Generators: Which One is the Best Back to Blog

Diesel Generators vs. Petrol Generators: Which One is the Best

Are you looking for the perfect generator for you? There are several considerations you have to keep in mind when buying a generator including price, maintenance, size and engine. Diesel engine generators are becoming increasingly popular for the simple reason that they are the most cost effective and fuel- efficient. But you also have the option of choosing petrol generators.

In this article, we take a critical look at these two types of generators, laying out the pros and cons to make it easier for you to choose the one that fits with your plans – you can find a range of generators over at Able Sales.

Diesel Generator Pros
Diesel generators are among the most commonly used generators. That’s because diesel engines are very fuel efficient because of the diesel motor’s higher compression. So in a head to head comparison if a diesel generator and petrol generator, the diesel engine will always have an edge. Some of the other advantages of a diesel engine include the following;

  • Diesel engines are cheaper to acquire and maintain. This is why most businesses rely on diesel engines to run their businesses. This is also the reason why most equipment including bulldozers, tractors, evacuators and generators more are all diesel engines.
  • Diesel engines last longer and take longer to depreciate in value which makes them very cost effective. They last longer because they don’t have to work as hard as petrol engines to produce the same power output.
  •  A diesel engine lacks an ignition system. This is advantageous because it is one less thing to worry about.
  • They also operate loads between 60% and 100% for longer periods of time which is why they are used to power smaller loads such as domestic appliances.

Diesel Engines Cons
As great as they are, diesel engines do have a few shortcomings. They include the following;

  • They emit more noxious gases andCO2 per litre of fuel than petrol powered engines.
  • Diesel has also been traditionally more expensive than petrol, at least 10% more although the balance is tipping.

Petrol Generators Pros
On the other hand, you could choose to use petrol generators. Petrol engines have been around for longer than diesel generators. Some of the advantages of petrol engine generators include the following;

Firstly there is a wide range of choice when it comes to petrol generators. This is due to the fact that they have been simply around for longer than diesel engines.

Petrol engines are now also being built with numerous economy modes to try and compete with the fuel efficiency that diesel engines bring to the table.

Petrol Generator Cons
Some of the disadvantages of a petrol engine generator include the following;

  • Petrol is more volatile than diesel fuel especially because you need a spark ignition that could be very risky.
  • Petrol also burns at a higher temperature than diesel. This can lead to more wear and tear over time. For this reason, petrol engine generators will often need more maintenance and repair and relatively shorter lifespan for the petrol generator.
  • Petrol generators cannot run at high loads for extended periods.



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