What’s the Difference Between Diesel and Gas?

Gasoline pump options

If you’re wondering about the difference between diesel and gas engines, you’re not alone. Many of our customers at Jeff Lungren Chevrolet aren’t aware of what each has to offer. To help you decide which one will fit your needs, we’ve outlined some of the basic distinguishing features.


Diesel engines have traditionally been praised for their excellent fuel efficiency and their high-strength performance. Both of these can be attributed to the fact that diesel fuel is the denser option of the two. This means diesel requires higher temperatures and greater pressure to detonate, packing more energy into each gallon. Diesel vehicles are usually more expensive up front, but can maintain their resale in the long run. These vehicles are ideal for those who want extra strength for high-towing capacities.


Gas is the lighter fuel, which makes it more flammable. This means that gas engines are more reliable and will start up more consistently in varying conditions, whereas diesel sometimes has trouble in cold weather. Gas engines have also come a long way in recent years, so they are sometimes as efficient as their diesel counterparts. These vehicles typically cost less up front, and their maintenance is simpler and less expensive as well. For those who don’t need to haul a great deal, gasoline vehicles may be the best option.

1 Comment

  1. I have always wondered what the difference between diesel and gasoline was. I just knew that trucks and other bigger cars seemed to use more diesel than other cars. That’s cool that diesel is just a denser fuel than gasoline, with it being denser it makes sense that it would have greater energy when using it. I didn’t know that before. No wonder bigger cars need diesel, they need the strength of the fuel to do their jobs! Thanks for the information!


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