While some vehicles have different gas tank sizes depending on the trim level, the 2014 Nissan Altima stays consistent. It offers an 18-gallon gas tank on every model regardless of trim.

However, it is important to note that the 2014 Nissan Altima may come with a 2.5L four-cylinder engine or a 3.5L V6 engine, depending on the trim level you choose. Larger engines burn through fuel more quickly, so if you have an Altima with a V6 engine, you might need to fill up more often than someone with a 2.5L engine would.

Still, many drivers believe this is a small sacrifice to make for a more powerful engine. It just depends on where your priorities lie!

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How to choose the best gasoline or fuel for your car

How to check your Nissan Altima’s gas tank size yourself

If you’d prefer, you can also verify your Nissan’s fuel tank size on your own. There are three different ways to go about this.

Measure and calculate

If you enjoy math, this one’s for you. First, you’ll need to grab a tape measure and record the length, width, and height of your gas tank in inches.

Next, multiply these numbers together to get the total volume of your gas tank in cubic inches.

Finally, divide the resulting number by 231 (the number of inches in a gallon) to get the total capacity of your gas tank in gallons.

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Drive to empty, then fill up the tank

This might not be the most scientific way to check your gas tank, but it works in a pinch. First, you’ll need to drive until your fuel gauge reaches E.

Then, when you fill up on gas, make sure to fill your tank completely. Check the number on the pump to see how many gallons you put into your car. This number will be close to your car’s fuel tank capacity.

Look in your owner’s manual

One of the easiest ways to verify your car’s fuel capacity is to check the owner’s manual. Look for terms like fuel, gas tank, or something similar in the index or table of contents to find the page number with the appropriate information.

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How far can you drive on an empty tank of gas?

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Saving on fuel costs in a Nissan Altima

There are three main ways to save on fuel costs for a Nissan Altima:

Make sure your engine is properly maintained. Keeping up with basic car maintenance won’t just ensure your car stays in good shape, it will also prevent you from using more fuel than necessary.

Drive carefully. If you constantly step on the accelerator just to step on the brake moments later, your driving habits might be costing you extra fuel. By using your accelerator and brake more conservatively, you’ll use less gasoline starting and stopping your car.

Don’t idle. In the colder months especially, idling means using fuel without driving anywhere, which is a textbook waste of gas.

Optimizing your Nissan car insurance

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