2008 · Two-Seater · Gas

2008 Porsche Boxster MPG & fuel economy

The 2008 Porsche Boxster is a two-seater offered in 5 EPA-rated configurations. The most efficient version returns 23 MPG combined (20 city / 29 highway) on premium gasoline. Across the lineup, combined ratings range from 21 to 23 MPG. Efficiency is unchanged from the 2007 model. Among 27 two-seaters rated for 2008, it ranks 5th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $2,576 a year to fuel.

Compare
Combined 23 MPG 20 MPG city · 29 MPG hwy
Driving range — not published for this model
Your fuel cost $2,576 15,000 mi/yr · $17.17 per 100 mi
Class rank, 2008 #5 of 27 Two-Seaters by fuel cost

What will it cost you?

Your mileage and prices are saved and used across the site.

Fuel average

The 2008 Porsche Boxster's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.5 km/L in the city and 12.3 km/L on the highway.

MPGkm/LL/100 km
City208.511.8
Highway2912.38.1
Combined239.810.2

How it ranks among 2008 Two-Seaters

Full class ranking →
  1. 1smart fortwo36 MPG $1,646
  2. 2Lotus Elise/exige23 MPG $2,022
  3. 3Audi TT Roadster25 MPG $2,370
  4. 4Mazda MX-524 MPG $2,469
  5. 5Porsche Boxster23 MPG $2,576
  6. 27Bugatti Veyron10 MPG $5,925
2008 BoxsterOther two-seatersClass median: $3,118/yr

Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.

Boxster MPG across model years

Full history →

5 EPA-rated configurations

ConfigurationTypeCityHwyCombinedRangeYour cost / yr
RWD · 2.7L 6-cyl · 5-speed manual
Boxster		 Gas 20 MPG 29 MPG 23 MPG — $2,576
RWD · 2.7L 6-cyl · 6-speed manual
Boxster		 Gas 19 MPG 28 MPG 22 MPG — $2,693
RWD · 2.7L 6-cyl · 5-speed automatic
Boxster		 Gas 19 MPG 26 MPG 21 MPG — $2,821
RWD · 3.4L 6-cyl · 5-speed automatic
Boxster S		 Gas 18 MPG 25 MPG 21 MPG — $2,821
RWD · 3.4L 6-cyl · 6-speed manual
Boxster S		 Gas 18 MPG 26 MPG 21 MPG — $2,821

Specs (most efficient configuration)

Fuel
Premium gasoline
Engine / motor
2.7L 6-cyl
Transmission
5-speed manual
Drivetrain
RWD
Tailpipe CO₂
386 g/mi

2008 Porsche Boxster vs. rivals

vs BMW Z4 22 MPG · $2,693/yr Boxster saves $117/yr vs Audi TT Roadster 25 MPG · $2,370/yr TT Roadster saves $206/yr vs Mercedes-Benz SLK-Class 20 MPG · $2,962/yr Boxster saves $386/yr vs Cadillac XLR 18 MPG · $3,292/yr Boxster saves $716/yr vs Porsche Cayman 23 MPG · $2,576/yr Same fuel cost vs Mercedes-Benz SL-Class 16 MPG · $3,703/yr Boxster saves $1,127/yr vs Cadillac XLR-V 16 MPG · $3,703/yr Boxster saves $1,127/yr vs Mercedes-Benz SLR 13 MPG · $4,558/yr Boxster saves $1,982/yr

Compare the 2008 Boxster

With any other car from any year, including other Boxster model years. Type a year to jump, e.g. "2015 Accord".

Frequently asked questions

What is the gas mileage of the 2008 Porsche Boxster?

Up to 23 MPG combined (20 city / 29 highway); ratings range from 21 to 23 MPG depending on configuration.

What fuel does the 2008 Porsche Boxster use?

Premium gasoline (premium is required or recommended by the manufacturer).

What is the fuel average in km/L for the 2008 Porsche Boxster?

The 2008 Porsche Boxster's fuel average is 9.8 km/L (10.2 L/100 km), or 23 MPG combined: 8.5 km/L in the city and 12.3 km/L on the highway.

How much does it cost to fuel the 2008 Porsche Boxster per year?

About $2,576 at 15,000 miles a year with $3.95/gal premium gas, or $17.17 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.

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