What fuel economy numbers are you getting?

[Vracer111]

Average 20-21 mpg every fill up for nearly a year with my normal driving habits, if I take it easy I can get 24 mpg. Long distance cruising on the highway @ 75-80 mph netting 30-31 mpg is easy...and repeatable.

Daily driving environment:
93 octane, sea level, hot and humid (90+ degrees/80+% humidity) for nearly half the year - and most hot and humid June through August. Daily chance of afternoon heat showers as well....which blows the humidity to basically 100% for the rest of the afternoon...

Relevant car setup: Traction completely off (hold button for ~ 5 seconds), A/C on, set to second coolest setting, Fan on second speed, lightweight 17x7.5 Enkei wheels (17 lbs) with the stock Michelins, 5W-30 engine oil (Redline Synthetic) - changed every 4-5k miles, aftermarket exhaust ("Y" catback design that gets rid of the stock muffer configuration), Perrin foam drop in air filter.

Driving habits:
Shift @ up to 3k and keep steady rpms around 2k before car warmed up. Once car is warmed up, rev to shift indicator (set at 7k) before up shifting, when slowing down, downshift through the gears usually stopping at 3rd gear when coming to a stop and clutch in/neutral when stopping and clutch in/1st when about ready to go. When making right turns at intersections onto a main street, maximum acceleration through the turn - just chirping the tires for maximum rotation speed . When approaching some nice s-bend feed road sections leading to overpass or other nice "curvy" sections - down shift and accelerate from about 4-5k rpm. I don't play around if I need to pass in a hurry, downshift to whatever gear will get me to 5k rpm and accelerate 100% (and shift if necessary) until pass completed, then let off, coasting down and getting back over in the lane. For easy passing on the local interstate (which is a majority of the time on it, but only about 30% of my weekly driving time) I just roll on the gas in current gear, usually waiting for going downhill on overpasses to apply throttle if the pass can be timed easily for such.

[Wattage]

9.7 L / 100km whatever that is in mpg

Mostly hwy driving but i am rarely aiming for fuel efficiency...

[Kwaziekeller]

I'm averaging about 30-35mpg depending on the weather. Pretty much driving as hard as I feel like, especially in the turns. I was surprised bc the MT is only rated at 30mpg highway. Most of my driving is on rural roads, with 55mph speed limits.

[JDMenrique]

Im getting 30mpg combined with 70% city driving.

[FRiSson]

I get about 26-27 in a mix of MT driving. The FR-S seems exquisitely sensitive to rpm changes. Pure highway mpg, where the revs change very little, is amazing - close to 40mpg, but back road driving (even without stops) drops to 32mpg. Add in even a little suburban or city driving and it drops to 26mpg. My observation of heavy-footed drivers is that they still get in the low 20's most of the time. So overall, the mpg is pretty good - just a little disappointing on the winding back roads going 40-50 mph (where previous cars of mine got the highest mpg). It is clear to me that the best mpg is achieved in really boring Interstate driving going 60-65mph.

[supra2nv]

26mpg here. heavvvvy foot lol. car has been tracked 2 events, many times on the track on each event haha. 11.4k miles. manual transmission. stock.

[bestwheelbase]

Originally Posted by FRiSson

I get about 26-27 in a mix of MT driving. The FR-S seems exquisitely sensitive to rpm changes. Pure highway mpg, where the revs change very little, is amazing - close to 40mpg, but back road driving (even without stops) drops to 32mpg. Add in even a little suburban or city driving and it drops to 26mpg. My observation of heavy-footed drivers is that they still get in the low 20's most of the time. So overall, the mpg is pretty good - just a little disappointing on the winding back roads going 40-50 mph (where previous cars of mine got the highest mpg). It is clear to me that the best mpg is achieved in really boring Interstate driving going 60-65mph.

Is this perhaps due to the tall top cruising gear?

[tennisfreak]

29-30 mpg with my foot in the floor most of the time.

[FRiSson]

Originally Posted by bestwheelbase

Is this perhaps due to the tall top cruising gear?

I don't think so. Except in the AT version.

[mit_peid]

I kind of question the folks who say they're actually getting 30-35mpg (and not just because I'm getting a crappy 22.5mpg).

For the MT (because I believe the majority of owners went with the MT), the government EPA estimate says 22mpg city and 30mpg highway with combined being about 25mpg.

Unless you live in rural America and most all your driving is in 55-65mph range on the highway, it is hard for me to believe you can average >30 mpg over the life of this car.

Are you calculating using your miles driven in your trip meter and dividing that by the # of gallons pumped or are you just relying on the car computer to tell you?

[Gost]

im using what shows up on the dash when you press the display button which for some reason is still shwoing 18.6 despite how "economic" i am trying to drive lol. When I switch to the avg mode however, its like in the 40s on highways with steady RPMs, and around mid 20s on city. One good thing coming out of all of this though is I am learning throttle control with the car, something I didn't really care much for when I was driving automatic. It's a learners car like the original 86.

[strat61caster]

Originally Posted by mit_peid

I kind of question the folks who say they're actually getting 30-35mpg (and not just because I'm getting a crappy 22.5mpg).

Get to a nice flat section of highway, put it in cruise control.

I know I'll get 32+ with the cruise set to 75, if I'm on a downhill grade and set it to 65 mph it'll be 35+mpg on the instantaneous display, this is consistent with my fill ups when I was calculating by hand and factoring in the city driving I did on the tank.

Combustion engines run at their most efficient at constant speed (rpm) and constant load, it also seems the way this car is tuned it's most efficient at around 70 mph, the instant meter shows better mpg's at highway speeds than sub 40 mph speeds.

It's all about HOW you drive and WHERE you drive. MT for myself, about 27-29 mpg lifetime average.

:happy0180:

Edit for the record:
http://www.fuelly.com/driver/stratcaster

I'm at 10k miles now, lost track of the records I was keeping and I know what the car is capable of so I stopped logging.

[Skywgn1]

Just got 37 on the way to Vegas for 86Expo. Now that I'm here.....14. This town sucks

[Kwaziekeller]

Originally Posted by mit_peid

I kind of question the folks who say they're actually getting 30-35mpg (and not just because I'm getting a crappy 22.5mpg).

Are you calculating using your miles driven in your trip meter and dividing that by the # of gallons pumped or are you just relying on the car computer to tell you?

I calculate it out and use Fuelly. Most of my driving is rural (55mph) and small town stuff (35-45mph, very few stop lights etc). I've gotten 35mpg for a tank in the summer, with the AC on, on a very flat and boring section of I-40, drafting semi's here and there. I learned a long time ago that factory mpg estimates/readouts/displays were usually a bit off. Did enjoy that in diagnostic mode with the EVIC trip computer in my Charger it would have a display for how much fuel is in the tank in pints... yes pints... ran it down to 6 pints once, and it was quite accurate lol.