G37 Sedan

MPG & Other Options

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Old May 9, 2014 | 09:59 AM
  #16  
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Originally Posted by ronaldvalente
Big leagues right there, to be honest... driving this car like a grandma sucks. The VQ37 is designed to be spooled up, you don't get full torque until 6k anyway.
Yup. 7100 rpm power peak. No sense in having all the power at the top of the tach if you dont use it. If I wanted stump pulling low rpm torque and no guts after 5000 rpm I would habe stuck with my turbo subaru.
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Old May 9, 2014 | 10:04 AM
  #17  
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Originally Posted by Lego_Maniac
Yup. 7100 rpm power peak. No sense in having all the power at the top of the tach if you dont use it. If I wanted stump pulling low rpm torque and no guts after 5000 rpm I would habe stuck with my turbo subaru.
Which Subaru did you have?

I am semi-looking at the new 2015 direct injected WRX, test drove it yesterday. Pretty sweet car. Drives better than the G in my opinion but the interior is far less refined. Same loudness from road/wind noise in both. Less roll than the G for sure, and of course the AWD so it has grip thats lasts for days, even on lesser rubber. (Running Pilot Sports on my G now)

Here is the torque curve comparison between the old EJ engine and the new FA engine.

Dyno tested: 2015 Subaru WRX vs. 2015 Subaru WRX STI - Road & Track
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Old May 9, 2014 | 10:52 AM
  #18  
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Originally Posted by telcoman

I have the same vehicle as you and get much better MPG



The worst mileage that I got was during very cold weather back in February but it was way better than what you are getting.



I change my air filters between 8 and 10k miles. Only takes 3 minutes.
If you haven't changed yours for 20k miles that could be the source of your problem



Telcoman
How did you get to those screens on the navi?
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Old May 9, 2014 | 10:53 AM
  #19  
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Information > Fuel Economy

You have the two options there, details or reset. I reset for every tank.
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Old May 9, 2014 | 10:58 AM
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Originally Posted by ronaldvalente
Which Subaru did you have?

I am semi-looking at the new 2015 direct injected WRX, test drove it yesterday. Pretty sweet car. Drives better than the G in my opinion but the interior is far less refined. Same loudness from road/wind noise in both. Less roll than the G for sure, and of course the AWD so it has grip thats lasts for days, even on lesser rubber. (Running Pilot Sports on my G now)

Here is the torque curve comparison between the old EJ engine and the new FA engine.

Dyno tested: 2015 Subaru WRX vs. 2015 Subaru WRX STI - Road & Track
I had a 2010 LGT. Not DI, but it had the new bottom mount turbo and EL manifiolds, so torque hit at like 2500 RPM with Stage1. Getting gobs of power was easy, upgrading the rest of the car wasn't. Stage1 tune:



If you drove a WRX I assume it was 6MT? You should try a 6MT G37S with the upgraded suspension, as it is much more comparable, unless you absolutely need AWD. I considered an STi instead of my G but wanted something more refined.
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Old May 9, 2014 | 10:58 AM
  #21  
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MPG is first about driving style, second about the car. If you, um, fully utilize the available HP in the car, like gunning it at red lights and quick deceleration at each stop, you'll suffer from lower mpg. 12-15 sounds like you either keep the pedal to the floor and drive 100% city or that your car needs a once over at the mechanic. It's possible that you have something or things really putting a drag on the drivetrain. Or you need to stop towing a boat with your G

Try resetting the mpg and driving like a grandma for at least 1/4 of a tank and see how you do.
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Old May 9, 2014 | 11:45 AM
  #22  
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That is a lot of neck snapping torque at takeoff!
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Old May 9, 2014 | 11:54 AM
  #23  
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Originally Posted by ronaldvalente
So I have been using Automatic (https://www.automatic.com) and thats reporting a 12MPG. The car itself is reporting 17. Both suck, lol.

That said, I have been trying to be extremely conscious a la not fun driving at all, nothing over 65, no hard braking or acceleration (nothing over 3-4k RPM).

So I am kind of baffled by said MPG I am getting.
Yea my daily drive consist of 25 highway miles each way. I'm pretty sure if I drive the speed limit I would get more out of it. Try the TB & MAF sensor cleaning as it seems to be cure for alot of the mpg & performance issues on the forum.
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Old May 9, 2014 | 12:07 PM
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Originally Posted by nishfish871
That is a lot of neck snapping torque at takeoff!
with awd, 6mt, and launch control it was brutal
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Old May 9, 2014 | 12:08 PM
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For sure check the filter and the TB's . I'm getting close to 20 MPG on my 09 but the wife is only getting 15 or so on her Q50? An I drive harder.
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Old May 9, 2014 | 12:13 PM
  #26  
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Originally Posted by ronaldvalente
So I have been using Automatic (https://www.automatic.com) and thats reporting a 12MPG. The car itself is reporting 17. Both suck, lol.

That said, I have been trying to be extremely conscious a la not fun driving at all, nothing over 65, no hard braking or acceleration (nothing over 3-4k RPM).

So I am kind of baffled by said MPG I am getting.
Fill tank.
Reset vehicle computer.
Drive 1 mile from gas station
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to New Jersey Turnpike to Garden State Parkway.
No stops, no cruise control, drive 50 miles to work, outside temperature 70 degrees, low humidity
Good mileage

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Telcoman
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Old May 9, 2014 | 04:00 PM
  #27  
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Originally Posted by alrockaz
MPG is first about driving style, second about the car. If you, um, fully utilize the available HP in the car, like gunning it at red lights and quick deceleration at each stop, you'll suffer from lower mpg. 12-15 sounds like you either keep the pedal to the floor and drive 100% city or that your car needs a once over at the mechanic. It's possible that you have something or things really putting a drag on the drivetrain. Or you need to stop towing a boat with your G

Try resetting the mpg and driving like a grandma for at least 1/4 of a tank and see how you do.
Just checked air filter. Its almost new.
I have been driving like a grandma, did a reset of the MPG computer, got 18 on the way home. 50 MPH highway almost the whole way.

Something is up...

While I agree, the G is much much much more capable from a speed perspective, I can't really use any of that around here, so I am finding it plus the 93 octane required painful...
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Old May 9, 2014 | 05:40 PM
  #28  
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I think the gas formulations in your area have a lot to do with it too. My old WRX was also pretty bad with this California gas, while on the east coast it did a little better.
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Old May 9, 2014 | 08:00 PM
  #29  
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Telcoman,

Premium around here is 4.09/G grr...
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Old May 9, 2014 | 08:44 PM
  #30  
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50 mph on the highway????

Our highways are 70, you can do 80 past a cop in the median with no worries.
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