Notices
991 2012-2019
Sponsored by:
Sponsored by:

24.2 mpg on my first tank - driving too gently???

Thread Tools
 
Search this Thread
 
Old 07-13-2019, 03:37 PM
  #1  
sr5959
Burning Brakes
Thread Starter
 
sr5959's Avatar
 
Join Date: Mar 2019
Posts: 892
Received 228 Likes on 156 Posts
Default 24.2 mpg on my first tank - driving too gently???

As the title says I got 24.2mpg overall on my first tank with my 2013 C2, which is my daily driver. Pretty impressive for such a quick car. This number I calculated based on miles driven and fuel used, the computer was showing 25.7mpg. I’ve been trying to enjoy it, pushing it on curves and enjoying the sounds to redline, but in most regular traffic it’s hard to use it properly and retain the driving license! In my previous car, a Merc C400, if I nailed the throttle to get past traffic in certain situations I’d look down and see maybe 80-82 on the Speedo, in this car it’s on 95 very quickly.
Old 07-13-2019, 04:45 PM
  #2  
digits
Rennlist Member
 
digits's Avatar
 
Join Date: Mar 2017
Location: Seattle
Posts: 1,144
Received 348 Likes on 186 Posts
Default

Lol yeah, that’s not driving with quite enough spirit. Shoot for 15mpg. Use sport plus, maybe?
Old 07-13-2019, 06:19 PM
  #3  
GKGEIGER
Rennlist Member
 
GKGEIGER's Avatar
 
Join Date: Feb 2018
Location: Central FL.
Posts: 573
Received 154 Likes on 78 Posts
Default

Just got back from a 230 mile drive for lunch, avg. 29.1 mpg.
Old 07-13-2019, 06:55 PM
  #4  
V999
Rennlist Member
 
V999's Avatar
 
Join Date: Nov 2018
Location: On a road to nowhere.
Posts: 1,010
Received 330 Likes on 195 Posts
Default

Pretty sure I haven’t seen 22 MPG in the 6700 miles I’ve driven so far in my GTS. One of these days, just out of curiosity, I will have to see how well I can do over the course of a week.
Old 07-13-2019, 07:31 PM
  #5  
Mike Murphy
Rennlist Member
 
Mike Murphy's Avatar
 
Join Date: Aug 2006
Location: Chicago, IL
Posts: 8,714
Received 1,580 Likes on 987 Posts
Default

Depends on average speed. I can get 29 while driving behind a friend doing 60, 17 is regular driving or 8 on the track or 20 on the highway doing 80.
Old 07-13-2019, 10:17 PM
  #6  
bkrantz
Rennlist Member
 
bkrantz's Avatar
 
Join Date: Oct 2012
Location: SW Colorado
Posts: 5,764
Likes: 0
Received 954 Likes on 568 Posts
Default

Never tracked my .2, but even after hard driving I have never seen less than 20 mpg. And "aggressive" highway driving gets me 30 mpg.
Old 07-13-2019, 10:24 PM
  #7  
BSO
Three Wheelin'
 
BSO's Avatar
 
Join Date: Sep 2018
Posts: 1,495
Received 552 Likes on 334 Posts
Default

I averaged 29+MPG on the highway legs of a trip I'm currently doing. It's not uncommon to hit 20-25MPG while driving at home, no stop and go driving so that helps.

It's a C4S so it has a bit of push, the MT may help.
Old 07-13-2019, 10:27 PM
  #8  
Cuda911
Race Director
 
Cuda911's Avatar
 
Join Date: Jun 2013
Location: Oceanside/Vista (N. San Diego County), CA
Posts: 11,312
Received 441 Likes on 284 Posts
Default

I normally average about 20. If I am having fun, I get 14 to 15. A few times on the freeway I tried driving as conservatively as I possibly could, and was able to average 32 on a 100 mile trip, 75 mph average.
Old 07-13-2019, 11:09 PM
  #9  
Psorcery
Banned
 
Psorcery's Avatar
 
Join Date: Aug 2018
Posts: 1,824
Likes: 0
Received 170 Likes on 126 Posts
Default

Best is 31 or 32 MPG.. Actually trying to get it as high as possible without cheating (downhills, cherry picking when to reset...etc). I truly average around 17/20.

30mpg is easily possible if you aim for it.
Old 07-13-2019, 11:21 PM
  #10  
koven
Rennlist Member
 
koven's Avatar
 
Join Date: Apr 2019
Location: California
Posts: 899
Received 322 Likes on 172 Posts
Default

i avg high teens DD around the city, high 20s on long highway trips
Old 07-14-2019, 12:11 AM
  #11  
Bob Z.
Rennlist Member
 
Bob Z.'s Avatar
 
Join Date: Jul 2001
Location: Marineland FL
Posts: 12,409
Likes: 0
Received 3,365 Likes on 2,308 Posts
Default

I just calculated my last tank's average and it was 17.2 mpg compared to 17.7 on the car....I was surprised it was that high.
Old 07-14-2019, 02:30 PM
  #12  
freeman
Addict
Rennlist Member

 
freeman's Avatar
 
Join Date: Sep 2001
Location: Tallahassee, Florida
Posts: 1,016
Likes: 0
Received 22 Likes on 16 Posts
Default

I have owned a 2013 991 C2 with PDK and a 2015 991 GTS. with MT back-to-back. The 2013 got 24/33 MPG city/highway. It had a 3.6 l engine as I remember with 350 HP. The 2015 GTS gets 22/30 MPG city/highway. It has a 3.8 l engine with 430 HP among many other things. Please do not compare apples to oranges.
Old 07-14-2019, 03:13 PM
  #13  
Rich_Jenkins
Rennlist Member
 
Rich_Jenkins's Avatar
 
Join Date: Apr 2018
Posts: 2,088
Received 713 Likes on 479 Posts
Default

Base 991.2 here; I got 31.7 (actual miles / actual gallons) on the way down from NYC to Tampa after we collected the car in early June.

Since then, commuting one way about 12 miles, plus weekends etc., and driving almost all the time in Sport, I am averaging 23.5 (again, actual numbers.) My wife says I drive like a grampa, which is probably accurate lol.
Old 07-14-2019, 05:43 PM
  #14  
gabbar
Advanced
 
gabbar's Avatar
 
Join Date: Apr 2018
Location: SF Bay Area
Posts: 94
Received 22 Likes on 12 Posts
Default

24.2 seems pretty good! I reset the counter every 2-3K miles and the average is 17.2 MPG + / - a couple of decimal points every time. Daily driver with average speed ~30 - 35 mph, driven in sport mode mostly. 2018 911 T, Manual.
Old 07-14-2019, 05:47 PM
  #15  
Bob Z.
Rennlist Member
 
Bob Z.'s Avatar
 
Join Date: Jul 2001
Location: Marineland FL
Posts: 12,409
Likes: 0
Received 3,365 Likes on 2,308 Posts
Default

Originally Posted by gabbar
24.2 seems pretty good! I reset the counter every 2-3K miles and the average is 17.2 MPG + / - a couple of decimal points every time. Daily driver with average speed ~30 - 35 mph, driven in sport mode mostly. 2018 911 T, Manual.
Do you ever step on it? I know stop & go driving drops MPG but that seems pretty low with an average speed in the mid 30s.


Quick Reply: 24.2 mpg on my first tank - driving too gently???



All times are GMT -3. The time now is 01:28 PM.