rlhyde

Any reason to believe that gas mileage on the Turbo S would be different than a non-turbo S if it is driven "gently" over a long distance? (Please ignore that fact that driving one gently would probably be impossible.)

Homeles

If you're worried about MPG, perhaps you should consider a Prius instead?

Bacura

The TT and TTS should be very close in consumption.

fast1

This is a first. Can't ever recall any Turbo S driver worrying about MPG before.

Homeles

Or anyone who contemplates buying a Porsche. Different world!

Noah Fect

If you're the sort who likes to drive 500 miles without stopping, it can be a relevant question. Whenever I take a road trip that involves traveling through Oregon, where you're not allowed to pump your own gas, I carefully plan my stops to ensure that none of them will occur in Oregon.

Homeles

It's only 400 miles East to West, unless someone stretched it!

Porsche Jeff

Really, it matters?

ruhlich

Keep in mind that it requires so much hp to maintain a given speed based on drag and engine efficiency. I think it's a pretty safe assumption that drag is equal between the two cars as is the efficiency, at least in the lower rpm (under 5,000?) range. So, if it takes, for example, roughly 12-15 hp to maintain 60 mph, my vote is virtually identical mileage if driven the same.

And yes, there are some of us who appreciate good mileage in our 991's even if the mpg numbers weren't in the top 10 on our wish list.

Homeles

Simple 25 MPG vs 30 MPG in a 15 gallon tank.

At $4.00 a gallon, that comes to $12.00 difference.

How many times do you drive across Oregon, East to West?

TrackFan

Gas mileage shouldn't be a concern. Stop to fill it up, and get another Redbull. It helps driving a TTS be more fun.

rlhyde

I paid cash for a 2015 Turbo S. It is on order. I can afford the gas, I just wondered if the Turbo impacted the mileage on long trips.

clangpap

No reason to think so over a long distance. At normal freeway speeds you will be demanding little or no boost, therefore fuel consumption should be similar. We have a 500whp turbo car (non Porsche) and in 6th gear cruising on the highway it delivers high 20s. If you look at the boost gauge none is demanded unless you put your foot in it.

As for those of you that do not have curious minds and think the OPs question silly, some of us look for things to keep our minds occupied on long road trips on the mind-numbingly slow NA road system. I've been punching buttons on OBC since I got my first in a 1984 BMW. What's the outside temp, time of arrival, fuel range, average speed, mpg etc. On our two week ED trip, I have no idea how much fuel we burned nor our mpg, didn't even scroll to the screen.

BTW, I was in Oregon last week. I pulled up to the pump in Hood River, inserted my credit card and started to pump. The pump jockey walked over, I asked if he minded, he said no so I continued.

rlhyde

Thanks, clangpap. I currently have a 2013 991 S (the white one in the picture), and drove it from San Diego to Las Vegas one day and was impressed that I got 32MPG on a casual drive. I always bragged about that to those around me. (People tend to assume a high performance car has to guzzle gas.)

I like the idea that it is so gas efficient when it needs to be. Glad to hear the Turbo S will be similar.

StudGarden

While we'd all like to think we'll be driving ball bearings out 24/7 the fact is the vast majority of 991 (and almost any other car) will spend a lot of time doing "normal" driving. One of the beauties of the 991 family (and the 981's for that matter) is excellent mileage at an incredible level of performance. It has nothing to do with affording the gas or not. I like power and performance but I like reliability and efficiency and good design/enginering. I suspect many 911 owners have a similar wholistic approach. Its what makes these cars so great IMO.