What is your average MPG

[Grizzly]

Let your wife drive, maybe?

Seriously, I'd put a tune-up on it and change the air filter if you haven't done it lately. I think you should be doing a little better than 22-24 mpg highway.

[speedyellow]

11.2 for H2; 25.3 for Box; 26.8 for 08 Scion xb (33 mpg advertise)

[987gator]

For an 05 987: Pre 10% ethanol in all central florida fuel - 23 to 24 mpg mixed highway / city driving. 29.5 mpg on an Atlanta to Orlando trip, top up, 75 mph tp 80 mph.

Now with the 10% ethanol fuel - 20 to 21 mpg mixed highway / city driving. I have not done a road trip, but right after fill up, on a 10 mile highway stint at 75 mph the OBC noted 27 mpg.

It may be a coincidence, but I think the ethanol blend has robbed some fuel efficiency.

[rick3000]

2.5L Boxster
100% Highway 30+ MPG
100% City 14-18 MPG
50/50 22-24 MPG

I reset my MPG once on the freeway, and it showed 46MPG for a few minutes until I got off the freeway. It made me feel like I was in my sisters Mini that consistently gets 36 MPG.

[pbanders]

Originally Posted by 987gator

For an 05 987: Pre 10% ethanol in all central florida fuel - 23 to 24 mpg mixed highway / city driving. 29.5 mpg on an Atlanta to Orlando trip, top up, 75 mph tp 80 mph.

Now with the 10% ethanol fuel - 20 to 21 mpg mixed highway / city driving. I have not done a road trip, but right after fill up, on a 10 mile highway stint at 75 mph the OBC noted 27 mpg.

It may be a coincidence, but I think the ethanol blend has robbed some fuel efficiency.

Ethanol has a lower energy density than gasoline, hence the lower mileage.

I generally get 19-20 mpg from my '03 2.7L w/Tip in mixed city/fwy driving. However, given gas prices, I tried soft-pedaling it on the last tank, keeping it to 75 mph on the fwy (instead of 90 mph), and using my cruise control. All that brought me up to 22 mpg - not sure it's worth it.

[edevlin]

My 19-year-old son and I drove from Virginia to Florida last week. The Boxster was stuffed, both trunks were completely full. I was pleased to get 28 mpg on the highway with the top down on our base 2000 car. We held the speed at a pretty constant 76mph. I cannt seem to force myself to drive through a tank of gas with the top up just to check the top-up mileage.

Ed

[kyle986driver]

Last time I filled up I reset my trip meter and My low-fuel light came on this weekend, I grabbed a gas can and decided to re-inact a seinfeld episode and drive until I ran out. I made it 330 miles...weeeeelll more than expected. I calculated I got 19.4 mpg...not good compared to you guys but keep in mind I heal toe downshift everytime, as well as floor it up to the speed limit everytime. My gas gauge needle had stopped moving 30 miles before I ran out!

[Paul]

I get about 22 in the twisties, 25 driving to work, and 29 driving to Parades with the car fully loaded and the A/C on.

[timothy]

I finally got around to installing the OBC four stalk. My daily commute is 20 miles each way of which 90% is city highway. If conservatively driving 65mph with little traffic, the top up, and A/C on full blast (this IS Texas after all), I managed to average 32mpg. That's about all I could eke out of the 2.7L.

[LoveBunny]

Mine is now 15.3. It's constantly going down.

[skip_168]

Originally Posted by LoveBunny

Mine is now 15.3. It's constantly going down.

mmm... the gas pedal must be sticking to the floorboard.. better have some one look at that.. happens to me all the time....

[NickCats]

Lovebunny, that can't be right. Next time you fill up, reset your odometer to 0.

Then, when you fill up after that, note how many gallons it takes to fill your car.

Divide that into the number of miles you have driven since your last fill up.

That should give you your MPG...

--------------------------------------------------------------------------

On a seperate note, I filled up yesterday.

I put in 13.5 gallons. Drove 290 miles on the previous tank = 21.5 MPG

( mostly going to work and back - 20 miles each way non-highway )

Still wondering why I only averaged 23 MPG on my road trip

Must be that sticky gas pedal skip mentions

Nick

[lucky_topher]

about 80% of my driving is city... i get right at about 300/tank... it's 75 miles between tickmarks on the gauge almost consistently..