Official Subaru Gas Mileage Thread
#46
Originally Posted by mbquarts
If I wait until the gas light comes on I pump about 13.5 gallons which comes out to about 275 miles on average. The most miles I have gone on a tank was around 350 and the least was around 250.
The most important number is the mpg b/c that number can be compared to any car regardless of tank size.
The most important number is the mpg b/c that number can be compared to any car regardless of tank size.
#47
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iTrader: (10)
Join Date: Sep 2004
Location: An ALMS race near you
Posts: 1,180
Car Info: 03 MBP WRX
Originally Posted by meilers
No, what this thread is missing is whether you have A/C on or not -- that's critical information. I get 300 miles per tank with A/C off, and 270-275 (as low as 250) miles per tank with it on -- I use the same type of gas every time (Shell Vpower 91) and drive the exact same distance every day (21 mile commute) at similar times, and that difference always shows up between summer (A/C on all the time) and winter (AC off).
I think the amount throttle used and driving conditions would impact mileage far more than a/c. When I drove up to lake tahoe I got 26 mpg with no traffic and hardly ever boosting. Then when I went to a car control clinic and a few "spirited" drives my mileage plunged to 18 mpg. Whats the main difference between these two types of drives...in a word...BOOST!!!
#48
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iTrader: (5)
Join Date: May 2003
Location: location location
Posts: 1,661
Car Info: 98 Impreza Outback Sport
Year/Model 1998 Impreza Outback Sport (145K mi.)
Modified? Intake, header, cat-back
Octane used regular chevron (89???)
Milage 20-21 mpg
Mostly City or highway driving? mostly freeway 75+
... I know I get better mileage when I go closer to the speed limit (65) on the freeway- but does anyone know what the most efficient speed is? And would certain mods increase this speed (or overall mileage)?
Modified? Intake, header, cat-back
Octane used regular chevron (89???)
Milage 20-21 mpg
Mostly City or highway driving? mostly freeway 75+
... I know I get better mileage when I go closer to the speed limit (65) on the freeway- but does anyone know what the most efficient speed is? And would certain mods increase this speed (or overall mileage)?
#49
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Join Date: May 2003
Location: location location
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Car Info: 98 Impreza Outback Sport
Originally Posted by BAN SUVS
Recently I've been getting 30.5-31.5 in my RS. I got a job as a courier, and it's 90% freeway miles. What amazes me is that I can get that much with 5-700 pounds of stuff filling the trunk and backseat!
One more question... Would finishing off my exhaust by replacing the cat-section with something high-flow be good or bad for mileage?
#50
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Join Date: Nov 2002
Location: Reno, NV
Posts: 18,369
Car Info: 1993/2000/2001 GF4 mostly red
Originally Posted by scoobsport98
What's your average speed on the freeway? I want to see those numbers if at all possible.
Originally Posted by scoobsport98
One more question... Would finishing off my exhaust by replacing the cat-section with something high-flow be good or bad for mileage?
#51
Originally Posted by mbquarts
I think the amount throttle used and driving conditions would impact mileage far more than a/c. When I drove up to lake tahoe I got 26 mpg with no traffic and hardly ever boosting. Then when I went to a car control clinic and a few "spirited" drives my mileage plunged to 18 mpg. Whats the main difference between these two types of drives...in a word...BOOST!!!
However, (and yes, I realize how useless one data point is), I took a trip a few months back which included about 220 miles of driving on soft dirt and sand, and I spent almost the entire time under boost -- essentially making a desert back-road into a rally course, with my brother as the co-driver. I drove the CRAP out of the car; near the end of the run I stopped and looked under the car and saw that the turbo was glowing red.
I got 320 miles out of that tankful. Go figure
Last edited by meilers; 07-02-2005 at 05:02 PM.
#52
2003 Wrx
03 WRX Wagon AT!!
STI intercooler, K&N drop-in, Perrin downpipe ,inlet hose, boost controller, MadDad connecting pipe (all 3") STI axleback.
About 13-14mpg City, 21 Highway. Aaaaaaa!!!!!!!!!
Not a nice driver though. Lead foot. Tried to take it easy, doesn't help much, deffinetly not worth it.....
STI intercooler, K&N drop-in, Perrin downpipe ,inlet hose, boost controller, MadDad connecting pipe (all 3") STI axleback.
About 13-14mpg City, 21 Highway. Aaaaaaa!!!!!!!!!
Not a nice driver though. Lead foot. Tried to take it easy, doesn't help much, deffinetly not worth it.....
#54
Year/Model: '95 Impreza L wagon
Gas: 87, try to stay away from cheap no-name stations
Mods: nothing that would affect economy seriously
Miles/tank: ~24 city/a little more highway
Type of driving: Mostly fast city (~45-50mph)
I've managed to get 24 mpg by being as light on the throttle as I possible could. Cruising at constant speed (75-80mph) on the highway yields 26, maybe 27. Over the winter, if it's cold, the fuel economy goes down noticeably. Also, I've been keeping the tire pressure in my Sumitomo HTR+ tires higher than before in an effort to improve economy. I run 38psi front and 36 rear (+/- a couple psi)
Gas: 87, try to stay away from cheap no-name stations
Mods: nothing that would affect economy seriously
Miles/tank: ~24 city/a little more highway
Type of driving: Mostly fast city (~45-50mph)
I've managed to get 24 mpg by being as light on the throttle as I possible could. Cruising at constant speed (75-80mph) on the highway yields 26, maybe 27. Over the winter, if it's cold, the fuel economy goes down noticeably. Also, I've been keeping the tire pressure in my Sumitomo HTR+ tires higher than before in an effort to improve economy. I run 38psi front and 36 rear (+/- a couple psi)
#55
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Join Date: Oct 2003
Location: rightBehindYou, HI
Posts: 7,783
Car Info: 1973 Huevo Ranchero
2004 WRX STi
pde dp, tanabe cb, perrin crank pulley, blitz short ram
92 octane
19.4 mpg(personal best)
50/50 city/hwy
2.65 per gallon
2003 WRX(wifey)
stock
22 mpg
50/50
2.65/ gal
between me and the wife she definitely has the most mileage(50k on hers) i have 25k on mine. i posted my personal best- in reality i have an average of 17 mpg.
with normal to high rpm shifts as well.
aloha from the summit of *-^-Mauna Kea-^-*
pde dp, tanabe cb, perrin crank pulley, blitz short ram
92 octane
19.4 mpg(personal best)
50/50 city/hwy
2.65 per gallon
2003 WRX(wifey)
stock
22 mpg
50/50
2.65/ gal
between me and the wife she definitely has the most mileage(50k on hers) i have 25k on mine. i posted my personal best- in reality i have an average of 17 mpg.
with normal to high rpm shifts as well.
aloha from the summit of *-^-Mauna Kea-^-*
#56
2004 WRX Wagon
No mods
92-94 Octane (Premium)
Manual Transmission
Averaging 25 MPG
Almost all highway mileage (approx 30 miles each way to work)
Car has 34000 miles (ie, broken in nicely)
Over the years, I've likely had an average of 24mpg. I usually fill it up with about 13 gallons and having traveled between 280-350 miles
No mods
92-94 Octane (Premium)
Manual Transmission
Averaging 25 MPG
Almost all highway mileage (approx 30 miles each way to work)
Car has 34000 miles (ie, broken in nicely)
Over the years, I've likely had an average of 24mpg. I usually fill it up with about 13 gallons and having traveled between 280-350 miles
#58
Registered User
Join Date: Aug 2005
Location: Roxbury, New Jersey
Posts: 1
Car Info: 1998 Subaru Legacy, first car, soon hopefully a 2002 WRX
1998 Subaru Legacy 2.5 gt sedan
27 MPG (best ive ever got)
2.25 a gallon, some small place in my town sells for about 1.95 a gallon so i go there as much as possible
Regular Fuel
mostly driving around town
27 MPG (best ive ever got)
2.25 a gallon, some small place in my town sells for about 1.95 a gallon so i go there as much as possible
Regular Fuel
mostly driving around town
#59
04 STi
got it brand new with less than 10 miles on the ODO and kept track of mileage.
never got the 24 mpg on the highway.
even when i took a trip a month after getting it (and broken in CORRECTLY) with a 1400 mil round trip where 95% of the miles was spent on I-5 (from san fran area to portland).
really disappointed by the number SOA gave...
now, and i still maintain records for EVERY fill up, i get 18-19 normal dailiy driving. 22-23 highway...
oh well... but when i press the GO pedal, all thoughts of mpg disappears... lol.....
got it brand new with less than 10 miles on the ODO and kept track of mileage.
never got the 24 mpg on the highway.
even when i took a trip a month after getting it (and broken in CORRECTLY) with a 1400 mil round trip where 95% of the miles was spent on I-5 (from san fran area to portland).
really disappointed by the number SOA gave...
now, and i still maintain records for EVERY fill up, i get 18-19 normal dailiy driving. 22-23 highway...
oh well... but when i press the GO pedal, all thoughts of mpg disappears... lol.....
#60
Originally Posted by ldivinag
04 STi
never got the 24 mpg on the highway. even when i took a trip a month after getting it (and broken in CORRECTLY) with a 1400 mil round trip where 95% of the miles was spent on I-5 (from san fran area to portland).
now, and i still maintain records for EVERY fill up, i get 18-19 normal dailiy driving. 22-23 highway...
never got the 24 mpg on the highway. even when i took a trip a month after getting it (and broken in CORRECTLY) with a 1400 mil round trip where 95% of the miles was spent on I-5 (from san fran area to portland).
now, and i still maintain records for EVERY fill up, i get 18-19 normal dailiy driving. 22-23 highway...