38D

Just did my first fillup, and I got 370 miles for 24 gal (~15.5 mpg). How far have others gone on a tank?

ltc

Between 480 and 510 mile range after filling up the tank.

DEETZ22

hm.... I have to fill it in every 160-180miles, maybe because I do city driving

160 miles = 43 bucks = I think around 20gallons so its around 8mpg

SFernando

Typically get about 270 miles in combined city/hwy driving per 20 gallon fill up

jarama beige

Pesky 914:

We experienced about 14 mpg. Freeway or city driving doesn't seem to matter; the difference has only been 1 mpg either way. Thanks.

k2kv

ITC -

You're getting 20 MPG? How do you do that?

My CT goes around 200 miles on 20 gallons. Lots of stop and go, some sitting & idling while I wait for my son's bus to arrive most mornings and afternoons.

ozr

...ITC probably, just reads car computer display (what computer predicts, but not real life range)...

My CayS computer always displays consumption 14.2 (historically started from 13.5 to 14.2...) for mixed hwy/city and ALWAYS spirited driving (sometimes manual and sometimes PSM off w auto/manual), also computer range displays the same as ITCs about 480-510,
...but real life range between refills is 270 mi + 80mi (computer 4 gal reserve) on Mobile 93 gas...

DEETZ22

that is weird!! my computer always says 10.0mpg and I always finish 20gallons in only 160-180miles!!

DrJupeman

Hey slow guy Pesky, does that tank include our autocrossing two weeks ago?

38D

No. That was the first post-autocross fillup. I'll have a full tank for this Sunday's autox, so we can do some calculations then.

I was still impressed with a 370 mile range. I wonder how much farther I could have gone (I drove ~35 miles at "0 miles to empty" on the trip computer).

ltc

The range display is after a fillup, after which I clear the avg MPH and avg MPG. I have not quite figured out exactly how it calculates the number.

I can go ~400miles on a fillup before my "!" light comes on reminding me to refuel (normally around 65 miles range remaining).

I do 75% highway/rural and 25% city on an average week. No A/C, no foot to the floor driving....well maybe one or two times a day.

Next time I fill up, I'll have to calculate MPG the manual method (gas put into the tank at pump autostop / miles on trip odometer since last fillup reset.

It looks as though I'm the exception rather than the rule.........maybe it's the new and improved Cardan shaft

Torags

Or the new brand of cigerette you're smoking...

However if it's accurate, call Porche; they would love to have a poster boy & their engineers would buy the car back...

ltc

555 mile range display today after tank fillup. Avg MPG was 20.4 before reset.

Maybe my Cayenne is trying to be nice to me with rising gas prices

ljugete

The most I've gotten is a 15.9 mpg reading and ~ 480 miles per fill up. I usually don't wait to much to fill up after "!" comes on.

CayenneS

On twenty gallons I get about 250 miles if im lucky (all city driving). With a combination of highway driving I could hit 300, if not a little more (but i have to be extremely easy on the gas, no fun =( ).