2018 Nissan Sentra MPG and Fuel Economy
On this page, you will find a complete guide to the miles per gallon and fuel efficiency data for the 2018 Nissan Sentra.
The 2018 Nissan Sentra has 4 model options: Manual 6-spd 4-cyl, 1.8 L, Automatic (variable gear ratios) 4-cyl, 1.8 L, Manual 6-spd 4-cyl, 1.6 L and Automatic (AV-S7) 4-cyl, 1.6 L.
The 2018 Nissan Sentra Manual 6-spd 4-cyl, 1.8 L runs on regular gasoline and is in the Midsize Cars car class.
The 2018 Nissan Sentra Automatic (variable gear ratios) 4-cyl, 1.8 L runs on regular gasoline and is in the Midsize Cars car class.
The 2018 Nissan Sentra Manual 6-spd 4-cyl, 1.6 L runs on premium gasoline and is in the Midsize Cars car class.
The 2018 Nissan Sentra Automatic (AV-S7) 4-cyl, 1.6 L runs on premium gasoline and is in the Midsize Cars car class.
🛣 How Many Miles per Gallon (MPG) Does a 2018 Nissan Sentra Get?
Across all models, the combined average MPG for the 2018 Nissan Sentra is 30 miles per gallon.
The table below breaks down the MPG for each model option:
| Model Option | Combined MPG | City MPG | Highway MPG |
|---|---|---|---|
| Manual 6-spd 4-cyl, 1.8 L | 30 | 27 | 35 |
| Automatic (variable gear ratios) 4-cyl, 1.8 L | 32 | 29 | 37 |
| Manual 6-spd 4-cyl, 1.6 L | 28 | 26 | 32 |
| Automatic (AV-S7) 4-cyl, 1.6 L | 29 | 27 | 33 |
💵 What is the Average Yearly Fuel Cost for a 2018 Nissan Sentra?
The average fuel costs for all models of the 2018 Nissan Sentra is $2,313.
The average fuel costs have been estimated by government regulators based on 15,000 miles driven per year, using regular gasoline, and a split of 55% city driving and 45% highway driving.
Comparing a 2018 Nissan Sentra to an average vehicle over 5 years, you will spend $62 more on fuel.
The table below shows the fuel costs and 5-year save/spend for each model option:
| Model Option | Fuel Cost | 5-Year Save/Spend |
|---|---|---|
| Manual 6-spd 4-cyl, 1.8 L | $2,100 | save $1,000 |
| Automatic (variable gear ratios) 4-cyl, 1.8 L | $1,950 | save $1,750 |
| Manual 6-spd 4-cyl, 1.6 L | $2,650 | spend $1,750 more |
| Automatic (AV-S7) 4-cyl, 1.6 L | $2,550 | spend $1,250 more |
🛢 How Many Barrels of Petroleum Does a 2018 Nissan Sentra Consume?
Across all models, the average number barrels of petroleum that the 2018 Nissan Sentra will consume in one year is 10 barrels.
The majority of the world's petroleum is sourced from countries like Saudi Arabia, Russia, Iraq, and the United States.
| Model Option | Barrels |
|---|---|
| Manual 6-spd 4-cyl, 1.8 L | 10 |
| Automatic (variable gear ratios) 4-cyl, 1.8 L | 9 |
| Manual 6-spd 4-cyl, 1.6 L | 11 |
| Automatic (AV-S7) 4-cyl, 1.6 L | 10 |
💨 How Many Grams of CO2 Does a 2018 Nissan Sentra Emit?
The 2018 Nissan Sentra will emit an average of about 4,503,750 grams of CO2 per year.
🌳 To help you understand the impact of this, a normal tree will absorb around 21,000 grams of CO2 per year. This means that roughly 153 trees would be needed to offset emissions from the 2018 Nissan Sentra.
Overview
The tables below cover all of the miles per gallon, engine specifications, and emission details we have for the 4 2018 Nissan Sentra model options.
Manual 6-spd 4-cyl, 1.8 L
The table below contains all of the details we have for the 2018 Nissan Sentra Manual 6-spd 4-cyl, 1.8 L:
| City MPG | 27 |
|---|---|
| Highway MPG | 35 |
| Combined MPG | 30 |
| Save/Spend vs Average Car | Save $1,000 |
| Fuel Cost | $2,100 |
| Fuel Type 1 | Regular |
| Barrels of Petroleum | 10 |
| Grams of CO2 | 4,455,000 |
| Trees Needed to Offset | 212 |
| Drive | Front-Wheel Drive |
| Cylinders | 4 |
| Displacement | 1.8 |
| Transmission | Manual 6-spd |
| Vehicle Class | Midsize Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | No |
Automatic (variable gear ratios) 4-cyl, 1.8 L
The table below contains all of the details we have for the 2018 Nissan Sentra Automatic (variable gear ratios) 4-cyl, 1.8 L:
| City MPG | 29 |
|---|---|
| Highway MPG | 37 |
| Combined MPG | 32 |
| Save/Spend vs Average Car | Save $1,750 |
| Fuel Cost | $1,950 |
| Fuel Type 1 | Regular |
| Barrels of Petroleum | 9 |
| Grams of CO2 | 4,185,000 |
| Trees Needed to Offset | 199 |
| Drive | Front-Wheel Drive |
| Cylinders | 4 |
| Displacement | 1.8 |
| Transmission | Automatic (variable gear ratios) |
| Vehicle Class | Midsize Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | No |
Manual 6-spd 4-cyl, 1.6 L
The table below contains all of the details we have for the 2018 Nissan Sentra Manual 6-spd 4-cyl, 1.6 L:
| City MPG | 26 |
|---|---|
| Highway MPG | 32 |
| Combined MPG | 28 |
| Save/Spend vs Average Car | Spend $1,750 |
| Fuel Cost | $2,650 |
| Fuel Type 1 | Premium |
| Barrels of Petroleum | 11 |
| Grams of CO2 | 4,770,000 |
| Trees Needed to Offset | 227 |
| Drive | Front-Wheel Drive |
| Cylinders | 4 |
| Displacement | 1.6 |
| Transmission | Manual 6-spd |
| Vehicle Class | Midsize Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | Yes |
Automatic (AV-S7) 4-cyl, 1.6 L
The table below contains all of the details we have for the 2018 Nissan Sentra Automatic (AV-S7) 4-cyl, 1.6 L:
| City MPG | 27 |
|---|---|
| Highway MPG | 33 |
| Combined MPG | 29 |
| Save/Spend vs Average Car | Spend $1,250 |
| Fuel Cost | $2,550 |
| Fuel Type 1 | Premium |
| Barrels of Petroleum | 10 |
| Grams of CO2 | 4,605,000 |
| Trees Needed to Offset | 219 |
| Drive | Front-Wheel Drive |
| Cylinders | 4 |
| Displacement | 1.6 |
| Transmission | Automatic (AV-S7) |
| Vehicle Class | Midsize Cars |
| Start/Stop? | No |
| Supercharged? | No |
| Turbocharged? | Yes |
Link To or Reference This Page
If you use this page in your research, please reference MPG Buddy as the source.
<a href="https://mpgbuddy.com/cars/nissan/sentra/2018">2018 Nissan Sentra MPG and Fuel Economy</a>
"2018 Nissan Sentra MPG and Fuel Economy." MPG Buddy. Accessed on January 3, 2026. https://mpgbuddy.com/cars/nissan/sentra/2018.
"2018 Nissan Sentra MPG and Fuel Economy." MPG Buddy, https://mpgbuddy.com/cars/nissan/sentra/2018. Accessed January 3, 2026.
2018 Nissan Sentra MPG and Fuel Economy. MPG Buddy. Retrieved from https://mpgbuddy.com/cars/nissan/sentra/2018.