I ran the car empty and added only 1 gallon of gas only, drove to school on the freeway for about 16miles and then went to lunch and on the way back the car ran out of fuel, total i got 20.2 miles in 1 gallon of gas
is that a good amount of miles in a gallon?
I'm checking thoroughly everything in the engine to make sure everything is running well

 

maybe next time try filling the car, resetting the trip, then next time you get gas do the math

but 20mpg is not bad

 

I got 23mpg, which for now is the best I've ever heard of on a rotary. The span is between 10 and 25 I'd say, so you are in the good side of town with 20

 

Over the last six years I've averaged 16mpg in mostly city driving. Pure highway I get about 24-26 mpg depending on conditions. I've often wondered if running at night when the headlights are raised is a serious factor as they sure don't appear very aerodynamically slippery.

One time, with one gallon, is hardly enough data to extrapolate from though.
Keep careful track of mileage and fuel consumed for 90 days and you'll have a much more accurate idea of your real average.

On a wildly divergent tangent...
I once met a friend of a friend who was a high altitude tester for Ford. Apparently the big car companies use civilians long term during preproduction. He was driving the new Thinderbird (this was about 6-8 months before release and the car was the very one featured in the Bonneville ads...the whole undercarriage was still stuffed with salt but I'm sure Ford was just going to crush the car anyway, so no one cared... and was free to use it as his normal car, if your normal car has the passenger footwell crammed with electronic data logging equipment...it was disappointingly crude I'd have expected mush slicker hardware but I'll bet Ford new exactly what kind of mileage he was getting.

His obligation was to perform these very specific drives under certain conditions during specified time periods.

No idea how he got that gig but it seemed like a sweet deal.

He, like most everyone else, didn't much care for the new Thunderbird.

 

highway I definitely squeezed out a 27 once, really smooth easy 65mph or so driving

 

i feel lucky when i get 20 ^___^

I'm NA as well..

 

last time i checked i got 20.5

 

I've gotten on average of 26MPG at 60-80 driving on the highway/freeways under various weather conditions and 16 on short drives and spirited driving with the stock fuel injection system, intake, exhaust. RB header, exhaust and high-flow cat had the same figures.

I'm now running an MS3, with the same header, cat and exhaust combo. I'm still tweaking the fuel map, but my last fill-up was an average of 20 MPG using closed-loop mode; a combination of 15-mile highway driving (cold-startups) and spirited red-line back-road driving (to the speed limit) around the same distance.

 

From complete fill up to fuel light being on I got 310kms on my stock (other than exhaust and intake) '91 N/A. That's 10.7mpg. That's 100% city driving. Never seeing 5th gear. When I drove highway for the first time with the car I managed 300kms on a half tank which is 20.7mpg at 60-70mph.

 

I'll send you a Coupon for some Cheese..LOL! (just kiddin..don't shoot me!)..you got the whine already!
...If I ever get 20 mpg I would do a 'happy dance'...and I got the Moves like Jagger!..haha!

 

misterstyx69-haha thats funny, I am happy im getting approximately 20mpg, the reason I did the 1gallon in the tank experiment was to make sure I wasn't getting only 10 mpg because i had a bad TPS for about a month, I replaced it this month with a turbo tps, and its running well, the idle is great,

-Now im just gonna check all electrical sensors are working properly, air pump etc to make sure the car is running perfectly and see how much more miles i could get in a gallon, RX7's are sports cars and I know these cars are not a prius but I wan't to make sure my car is running 100% properly

 

I normally get 23 highway on my GXL.
I get 18 highway on my turbo........

I got tired of the dismal mpg since I drive almost 50 miles a day, so I bought a mazda2 :P
I get close to 40mpg

 

that's cause the turbo's nailed while on the on-ramp
otherwise don't see the reason why such difference.
9.4:1 cr vs 9:1 shouldn't make that much difference.

 

i only get 12-13 mpg, pretty much all city driving, in traffic and lots of wot.....
its fun as hell though!

Lloyd

 

How do you like the Mazda 2?
My Gf has a Mazda 3 and it's bigger than my fc, I figure since its a compact it should be smaller, lol.

I assume everyone getting 20mpg is in an NA correct? I average 19mpg, mixed city and highway.

 

This thing's hauled more rx7 parts in it than most rx7's.

>5 engines, 3 transmissions, 2 diffs, countless boxes

 

I've been betting 15-16 mpg consistently.

I'm usually WOT, shifting at 6-7k.

 

I got about 24 on Highway in my old s4 na with a full exhaust. Around 18-21 on the streets.

Really depends on how much throttle you use and where you shift.

Obviously the heavier your foot is the heavier your fuel consumption will be.

1/4 throttle and shifting before secondaries kick in would logically give you the best gas mileage.

who can resist hitting the redline in a rotary? Not much point in owning a rotary if youre afraid to redline it or at least hit the Start of the redline and make the buzzer go off.

 

Not 2nd gen but Stock (aftermarket exhaust no headers) GSL-SE, 13b 17 to 18 all summer driving total of 5000 miles to work on back roads, 60 MPH on occasion with many stops to run up through gears. Shifting at 4500 or 5000 until up to normal 45 or 50 MPH. I'm happy with that , started at 14! Have no highway runs for full tank to test MPG.

 

I get 20 city/mixed.

One time I drove from Austin to Dallas and got 27mpgs.
Some of the speed limits are 75 too.

 

Mazda2 is a fun little car, especially when it weights around 2300lbs
Car seems small, but sitting in it, there is seriously lots of room, more so than most SUVs. The roofline is seriously too tall though....