Congratulations, you’re looking into a diesel car! You’re looking to save money on gas and ensure that your vehicle is as reliable as possible. Like any car purchase, there are things you should look out for. Let’s get into it!

Choose a Reputable Brand

Before you do anything else, take some time to research your options. There are many different brands and models, so get familiar with them.

You want to find a car from a brand with a reputation for reliability, like Mercedes-Benz or BMW. These manufacturers have been around for decades, and their dedication to quality is unparalleled.

Find the Right Model Year

If you’re looking at used cars, make sure to research the car’s model year you’re eyeing. Look at reviews from the year of your prospective purchase to see what owners were saying about the vehicle.

Did they complain about any joint issues? Did they rave about it being maintenance-free and reliable? Were there any significant recalls? Do your research, and don’t be afraid to ask questions of the seller.

Find Out How Many Miles Are on the Engine

The average diesel engine has a lifespan of 350,000 miles—much higher than that of most gasoline engines. Of course, this number varies depending on use and maintenance habits. If you’re looking at buying used, make sure to look at the condition of the car’s common rail injector. Is it in mint condition or worn out?

Diesel vehicles generally get better MPG when traveling at slower speeds because they’re more efficient at lower RPMs than gasoline engines at higher RPMs.


This is the most significant factor when deciding which car to buy. If you don’t have enough money to buy a car, it doesn’t matter how reliable it is. You need to make sure that whatever car you choose is affordable for your budget.

Repair Costs

You might be able to afford the original sticker price of the car, but if it has high repair costs, it will not be worth buying in the long run. It would help if you found out how much parts and labor cost before deciding on a car to know your expenses over time.


There are many things to consider when choosing a diesel car, but those tips should get you moving in the right direction. Don’t be afraid to ask questions, and don’t shy away from taking a test drive. Often, the best way to tell whether a diesel car is right for you is to find out for yourself.