Boxster MPG

[funlovinguy24]

So i am wondering what everyone gets MPG wise in their boxsters. I calculate mine when i fill my tank to full, number of gallons i put in, and divide the number of miles ive driven since last fill up by those gallons.


1999 2.5l 5-speed

My best mpg was 23
and my worst was 18
these are for nearly full tanks

i typically get 19-20 mpg anymore.
Am i getting low gas mileage? I drive very conservatively most of the time.
Any suggestions? maybe something isnt working right?

Also just curious what you guys are getting in various years and models

[appistappis]

2000 boxster 2.5.......consistantly at 20.1 mpg

[sasha055]

2000 Boxster base, 2.7L 76K miles
I'm checking my MPG just like you.. every time I fill up, I pull my phone to do the calculations
I was getting 16-18mpg, and I drive about 40/60 city/HWY.
For last 2 tanks I'm up to about 20mpg thanks to technotorque, but then again.. I cruise at over 3K rpms

Sasha

[tonycarreon]

on long trips (on the highway full time) i get 24, otherwise i get around 19 mixed driving (and i don't necessarily drive "conservatively," so punch it more... )

[Flavor 987S]

2006 Boxster S (pushing 43,000 miles now!)
Spirited country roads I get low-low 20's.
Highway cruising I get over 28.
I'm never in city stop & go traffic.
99.99% top down.
I exclusively purchase 93 octane without ethanol. Makes a HUGE difference.

[clickman]

25 miles/US gal on highway driving, using 94 octane

[dmairspotter]

03 Boxster S

Best 26.8 highway
Overall, about 21

[MN 986]

According to my OBC hack, my 2002 2.7 averages 24-25mpg with mixed driving on most tanks. I have seen as low as 17mpg with harder driving and as high as 31mpg on long freeway trips. I always use premium but we also have a mandated 10% ethanol which is said to reduce mileage so my mileage could be even better.

[Flavor 987S]

Originally Posted by MN 986

I always use premium but we also have a mandated 10% ethanol which is said to reduce mileage so my mileage could be even better.

There is a TON of ethanol free gas your great State of Minn. You just have to know where to look. IMHO, 91 pure gas is better than 93 with ethanol:

http://pure-gas.org/index.jsp?stateprov=MN

[Paul]

2001, 28 highway, 21 around town, I like to floor it often. 93 Octane BP with 10% ethanol.

[matty-matt]

top down, highway @ 70mph.ish 25mpg
top up, highway @ 70mph.ish 28mpg
around town and what not, 21mpg

2001 boxster s 6-speed

[DenverSteve]

My combined city and mountain driving nets 26 - 28.6 MPG. It doesn't matter if I'm kickin' it in the mountains at 90+ or keeping it "legit" around 65-75. Great car with great mileage.

[Dave S.]

I've checked the mileage on my 03 Boxster S several times and always am right around 27 mpg, virtually all highway driving since I live in the country. Doesn't seem to matter that much if I drive it like I stole it, or just putt around, always right near 27 mpg.

[Highlow]

According to the car, I get 18.7. That is the average over the last few months.

I haven't done the calculations myself.