Shitty Mileage
 

I consistently see folks on this forum talk about getting(conservatively speaking) 30+mpgs. Never in a million years would I imagine myself getting 30+ mpgs in my FRS let alone the 40+ mpgs I have heard a few people on here brag about.

I am very mechanically inclined. I've been working on cars since I was 3 years old. I am a lead foot but I am also an adult. I don't race every Camry that I see at the stop light.

HOW THE FUCK ARE YOU PEOPLE GETTING SUCH AMAZING MILEAGE????

At this point I am assuming that either my car is fucked up or that none of you know proper math. I have faith in humanity so I will assume that your math is accurate.

Why am I consistently getting <20mpgs? I had my 30k mile service last week and they said the car is in remarkable shape.

Am I the only true lead foot on this forum or what?

What are your driving habits and conditions?

I've had 30-32 MPG for almost all my fuel ups because my commute is 90% highway at 65-70 MPH and in the city I shift at around 3k rpm.

You say that you have a lead foot, so you might be heavier on the throttle for longer durations or going WOT more often than you think.

Check your tire pressure? Also, tires with less rolling resistance get better MPG.

I doubt anyone is actually getting 35+ mpg on average. Even 30 mpg. If you're not on the highway much you'll be in the low 20s.

1. Automatics.
2. Don't shift above 3k rpm.
3. 1/4 throttle or less.
4. Always drive at speed limit or below.
5. Shift faster/powershift at partial throttle to keep momentum.
6. Highway miles at lower speeds.

I get 26 mpg (9 L/100km) with mostly city driving. In traffic I drive it like you should drive any car; sensibly. On open highways, on ramps, back streets I'll tear it open, but that's only like 20-30% of my daily driving at most.

Really depends on your driving situation and style. You can get the car to be very economical (for a sports car), but then you're generally not driving it like a sports car.

Maybe ease up on the throttle or the high revving if you want to see better fuel economy? Just try it for a tank of gas as an experiment.

After a circa 200 mile trip 90% highway. I think it might be down to the quality of the fuel.

Do not rely on the average MPG based off the computer, it is known to be up to 10% generous.

Go to the gas station, fill up until the pump automatically clicks off and divide the total amount of miles driven by the amount of gas you actually put in, assuming you began with a full tank.

Your results will be skewed if you keep on trying to squeeze every last drop of gas from the pump after it automatically clicks off.

These are my fill-ups based on the same exact filling method, using the same gas every time on my commute:

http://www.fuelly.com/car/subaru/brz...1360/fuelchart

I've observed that pushing even to 70 starts to drop fuel economy. Proportion of highway miles and how you drive in the city also makes a huge impact.

I've been as high as 35ish on a trip, but living in the city and just driving to AutoX events I'm in the low 20's (including the events, mind...) Calculated average, not based on the car gauge.

C

Actually, I have only had one tank below 35 mpg (calculated, not off the dash display) in the 3000 miles driven since the car was bought new. A lot of it is driving style but the routes I typically drive are very favorable for good mileage.

And I rarely use the brakes when turning. :D

I average about 19.5 mpg. Probably 95% of the time, my trips are less than a mile or two away so the car never even really gets warmed up which is what's killing the efficiency.
If I get on a highway, it will jump to the mid thirties and that is not babying it either. I can see touching the forties if cruise control was used.

I averaged 24 - 27 with a turbo, and I drove it a stolen racecar. I don't think I ever shifted below 6K.

How the f*ck are people people getting the mileage you'd expect from a dodge durango out of a high-compression direct-injected 2 liter engine? It's absurd.

If I let the revs back down into the territory of sane people I could get 33, but where's the fun in that?

I will admit, under acceleration, the instantaneous would occasionally read... 1... 2... Somewhere in there, but when you run out of road before 3rd gear redline, you spend most of the time cruising.

Do you have any mods? Tune?

With cpbs and oft tune im seeing 22mpg on the dash with mainly short hop driving. Car runs well so im happy with it.

http://jalopnik.com/5981938/why-do-e...g-than-us-cars

Look at the location of users that post about 40+ mpg. Chances are, they don't measure mileage the same way you do.

You do realize that the internet spans the globe, don't you?

And that the concept of a gallon varies from country to country?

That in the UK it is an imperial gallon equal to about 1.2 US gallons?

I am in the US and average about 26 MPG combined... but on long highway drives I can get low to mid 30s with my manual. Posts like the one above showing 45mpg in the UK need to be scaled back by a factor of 1.2 (roughly 37 mpg) for comparison to the US.

On the highway at 70-75mph I average 35.5mpg according to the HUD.
On the street It's around 26-27mpg.

In Indiana, on 93oct.

In much the way you cannot fathom 30+mpg, I cannot fathom getting under 20mpg in this car, ever.

I consistently get 30-31 mpg on 93 with mixed driving.

OFT stage 2 UEL, UEL header, ABE, K&N filter, 18"x8.75" XXR wheels.

As much as I hate to admit it ...........I have to agree with Norville Rogers. :sigh:


hamfrz

If you have a 2.0L engined car and you're getting 22 MPG- you're beating the snot out of your car at every light and the car never sees the highway.

*edit- I just saw cpbs- maybe that changes things? I'm not familiar with the cpbs tune either so maybe it's just a very thirsty set up

hamfrz?

Is Mehico changing you?

100% agree with you. I average 35mpg doing 80mph on cruise control for aq full tank, but this drops quickly to 19mpg during my daily commute in traffic.

I'm baaaaack ......... :happyanim:

It was the water ...... the water in Hollister, CA had a strange effect on me.

Maybe because it's "too close" to Mexico ..... maybe the pump their water up from Mexico .. ??

Yep, lots of brain shakes (maybe it was an earthquake) maybe it is because my sister drives me nuts ...... but the stomach/intestine problems had to be the WATER!

Maybe it was the "commitment ceremony" we attended between two young men, or that it was outside in 100 degree heat or the Mexican food they served or the horrible music or the motel room at the Hollister Inn ....... hey, we did find out that Hollister has a small hospital with an emergency room.

humfrz - recovering in Puyallup

NO!






humfrz

I think you misunderstood the thread title.

I recently went on an 1800km road trip, 90% highway driving and recorded an average across the trip of 6.6L/100km (35mpg US) at 75mph on cruise control most of the time, in town I'm seeing about 9L/100km with a lot of spirited driving.

Well, it sorta had something to do with it .......:bonk:


humfrz

I average 18.4. My commute is 1.3 miles of stop signs and back streets and I love getting sideways on every turn so it's about expected. I usually see around 27 on the highway on the very limited time i see them.

21MPG on E85 mostly city

I commute 110 miles round trip every day. Mostly highway but lots of traffic, stop and go. I do 30MPG.

~24.5MPG with E85 and ~30.5MPG with 93

Only way I could see getting under 20MPG is if you're running around in 3rd or 4th on the highway, or the equivalent on normal roads. 6th isn't just for the highway peeps...

90,088 miles, and the average over that time is 33MPG Calculated (34 by the onboard computer which has never been reset). I've done nothing special to get there, and have been surprised by the efficiency frankly.

The FR-S is my commuter. I drive aggressively, but don't do track days and am rarely stuck in traffic on my commute (average speed on my 40 mile commute is 40MPH (40 miles average time, 1 hour), but varies from 35MPH to 65MPH along the route).

Lowest I've ever gotten out of a full tank is 27.6MPG, and that included a lot of in-town driving with a two-hour traffic jam.

All documented in the original post in my Owner's Journal (although its a couple of tanks behind, need to catch it up).

I dont see over 55mph on the way to work and im 27.6mpg

I do race to speed limit almost every time. But shift at 4.5k

It's not rocket science, if you get good fuel economy you probably satisfy one or more of the following conditions:

1) live in a flat area
2) drive at a steady speed for longer distances, engine gets warmed up, use cruise control
3) short shift (but not too short, too short and you'll have worse fuel economy)

If you get 'low' fuel economy you probably:
1) live in a hilly/mountainous area
2) drive short distances, engine doesn't get warmed up, or a ton of stop and go, never use cruise control
3) drive the car the way it's meant to be driven ( :D )

For a long time my average was just under 20mpg, how did I accomplish this unimaginable feat? I commuted to the train station 2 miles away, 7 minute drive. My motor was barely warmed up by the time I parked again.

Edit: one last thing, if you're a 'nervous' driver that rides the brakes or is constantly moving the gas pedal slightly even at highway speeds, your mileage will suffer.