2348 E. Broadway Rd.
Tempe, AZ 85282

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Diesel Engines vs. Gas Engines: Which Is Right For You?

by | Nov 15, 2023

There are a few types of engines you can buy these days in your personal vehicle, making the decision as to which new vehicle is right for you a little bit more complex. More and more foreign auto manufacturers have started offering diesel models in recent years, so the next question is, are gasoline or diesel powered vehicles the better choice? Although gas cars are more popular than diesel cars in the U.S., diesel engines have nearly half the market share in Europe. Are the trends working in that direction in the U.S., too?

Diesel Engines vs. Gas Engines: What’s the Difference?

Before you make a decision, you need to do the research and have a little background on each type of engine plus their pros and cons.

Both gasoline and diesel engines use internal combustion where air enters the engine and combines with fuel. In an effort to keep things simple, we won’t get too much more into the details. However, the ignition process is where this varies for these types of engines. During the compression process, a spark plug ignites the fuel in a gas engine. Diesel engines do not have spark plugs, but simply “use extreme compression to generate the heat required for spontaneous ignition, also known as compression ignition.” This would damage a gasoline engine.

Pros and Cons of Diesel Engines

Now, let’s break down the pros and cons of diesel engines!

Diesel Engine Pros:

  • Super towing capabilities, enhanced torque and superior take offs
  • Improved fuel efficiency
  • Improved noise level and smoother performance compared to older diesel models
  • More efficiency, decrease in carbon emissions compared to older models
  • Engine has fewer components and no tune-ups are needed

Diesel Engine Cons:

  • Inferior horsepower, slower speeds
  • Fuel prices are more expensive and some gas stations may not have diesel fuel
  • Noisier than gasoline-powered engines
  • Emissions can emit harmful substances
  • Maintenance and repairs can be costlier
  • Not all automotive repair shops are experienced to perform diesel engine repair
  • Difficulty starting in cold weather since they lack spark plugs

Diesel engines have come a long way and improvements are quite evident. However, some of the old diesel stereotypes still exist today – terrible emissions, dirty or noisy rides, and a “stinky experience” are just a few.

Expert Diesel Repair and Maintenance In Tempe, AZ

Are you going to be spending weekends camping in the woods, hauling a horse to shows and rodeos, or hauling ATVs to the sand dunes? Or, are you planning to explore America’s highways and become a frequent road tripper? If not, then gasoline-powered engines may be the best option for an easy daily commute. We welcome you to come in and talk with us about diesel engines at any time so you can make an informed decision about what’s best for YOU.

Here at Good Works Auto Repair, we have mechanics on staff who know and love diesel repairs and maintenance. If you do decide to purchase a diesel vehicle, you can count on us to handle your diesel maintenance and repairs. Give us a call or schedule an appointment online today!



And experience QUALITY auto service backed by a 5 year / 60,000 mile warranty! Call 480-894-0018 or

Auto repair shops with payment plans near me

Good Works Auto Repair in Tempe offers financing and allows you to make payments on your car repairs.

Shop Hours

Mon – Fri 7:30 – 5:30
Sat 7:30 – 5:30


Our Location

2348 E. Broadway Rd
Tempe, AZ 85282

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