2018 Porsche Boxster Gts
22MPG
Combined
2
Trims
Updated February 27, 2026
The 2018 Porsche Boxster Gts Sports Car provides 21–22 combined MPG depending on trim. We’ve compiled EPA fuel economy data, NHTSA safety ratings, and recall history so you can make an informed decision.
2018 Porsche Boxster Gts Specifications
| Spec | Value |
|---|---|
| Combined MPG | 21–22 combined MPG depending on trim |
| City MPG | 20 |
| Highway MPG | 26 |
| Body Style | Sports Car |
| Fuel Type | Premium |
| Drive | RWD |
| Available Trims | 2 |
Available Trims
| Trim | MPG (City/Hwy/Combined) | Engine | Transmission |
|---|---|---|---|
| Man | 19/25/21 | 2.5L 4cyl | Manual 6-spd |
| 4 cyl | 20/26/22 | 2.5L 4cyl | Automatic (AM-S7) |
Annual Fuel Cost
Based on EPA estimates, the 2018 Porsche Boxster Gts costs approximately $2,725 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.
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