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#1 (permalink) |
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Registered User
Join Date: Sep 2012
Location: near san francisco
Car: white 2013 subaru outback 2.5i 6 speed manual
Posts: 39
Feedback Score: 0 reviews
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Hey what's up guys, there are a lot of threads on here about fuel efficiency shift points. What about normal driving? My fuel efficiancy has gone out the window with the freeway i take to and from work normal speeds being 80-85 mph. I find myself at closer to the 3k mark when I shift. Since this is higher than most things I've read is there anything I need to know about shifting at too high an rpm.? I've always thought too low was worse. But I'm very new to stick. Any info would be greatly appreciated... I have a big hill when I leave my house and I feel right at the top of fourth gear right around 29-31k my car gets some balls and takes off. Is it ok to creep in to that range or is that working the 2.5 too hard? I know it's not an Sti impreza but its still fun to drive not like a grandma. And coming from a giant lifted truck getting 12 mpg 24 that I've been getting is good to me and it handles like a dream compared to what I'm used too. Looking forward too hearing back.
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#2 (permalink) |
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Registered User
Join Date: Feb 2010
Location: Planet Earth
Car: 2010 2.5i OB 6MT
Posts: 846
Feedback Score: 0 reviews
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Casual driving shift point for my wifes car is between 3-3.5K RPM. She shifts around 2.5K and it sounds and feels too low...But she has a 2010 which does not have as low a torque curve as your 2013 2.5l.
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2010 Subaru OB 2.5i 6MT 2008 Dodge Caliber SRT-4,1969 Dodge Coronet I keep the Dodge around for when my Subaru is broken. 2003 TiSport Gman, sweet Titanium XC ride. 2009 SE Racing SoCal Flyer Cruiser 2011 Motobecane CF LTD 2012 Niner Air 9 |
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#3 (permalink) | |
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Registered User
Join Date: Jan 2011
Location: Sackatomatoes CA.
Car: 2013 Pearl White Limited /SAP/Moonroof+ many other goodies
Posts: 2,105
Feedback Score: 1 reviews
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Quote:
Your shift points are not what's killing your mileage.
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I'm not happy....till you're not happy |
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#4 (permalink) |
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Registered User
Join Date: Nov 2010
Location: Florida Keys
Car: White 2011 Outback 3.6 R Limited
Posts: 769
Feedback Score: 0 reviews
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Yup. 80-85 MPH is what kills the mileage. try 70-75 but YMMV..
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www.backcountryfishingthekeys.com https://www.facebook.com/BackcountryFishingTheKeys Mods; King springs, DDM HID, hood deflector, window vents, 2" Hidden Hitch, transmission oil cooler, seat-covers, Tanabe strut bar, 19 MM RSB, Primitive skid plates, K&N air filter, tinted windows, blacked out foglight surrounds. |
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#5 (permalink) |
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Registered User
Join Date: Jul 2012
Car: 2013 Outback 2.5 Premium 6mt
Posts: 178
Feedback Score: 0 reviews
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Ignore the comments from the folks with the CVT/AT. The 6mt gets decent gas mileage at 80 as long as you keep a steady speed. Focus on keeping a steady speed instead of going up and down with traffic.
Also, use the eco gauge to your advantage. Play around with what gears gives the best gas mileage for the speed. And finally, if still accelerating, let it rev. Don't be so quick to upshift if you still need to gain speed. Again, use the eco gauge to determine what upshift speeds gives the best gas mileage. |
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#6 (permalink) |
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Registered User
Join Date: Oct 2012
Location: NorCal
Car: 2012 Subaru Outback 2.5i Six Speed
Posts: 4
Feedback Score: 0 reviews
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CoastOutback: We seem to have similar taste in cars!
Revving to roughly 3,000 rpm to climb the hill near your house is certainly not working the 2.5 too hard (I presume this is what you meant by 29-31K). The amount of gas your engine uses is less related to rpm than to the amount of energy needed to do what you're asking. If you are trying to push 3,400 pounds at 80 mph, or accelerate up a hill quickly, your ecu will determine you need more power and the fuel injectors will provide you more fuel. If you would like to see for yourself the "not exactly causal" relationship between rpm and mpg, accelerate to about 40 mph in 2nd gear (putting you at high rpm), take your foot off of the gas pedal, and look what happens to the mpg gauge on the left. Because you are no longer asking the car to accelerate or even maintain speed, the mpg gauge will shoot to the top despite the high rpm. The way to get good mileage in this car is pretty much like any other: no jack rabbit starts, coast to stop lights, use cruise control and keep freeway speeds down (due to the exponential growth in wind resistance). Ed |
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#7 (permalink) |
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Registered User
Join Date: Jan 2012
Location: Philly 'burbs
Car: 2013 Legacy Limited CVT Car: 2011 Outback Prem 6MT Car: 2006 Mazda MX5 GT 6MT Bike: 2003 Honda GL1800ABS ** Reunite Gondwanaland! **
Posts: 1,369
Feedback Score: 0 reviews
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Aerodynamic drag consumes 49% more horsepower at 80 mph than
at 70 mph, and should reduce mpg by about 30%. (Drag horsepower goes as speed cubed; drag energy-per-mile as speed squared.) On level ground at constant speed, weight makes absolutely no difference -- but it hurts when accelerating and/or climbing hills. ...not just a good idea, them's THE LAWS! Looby
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All-time favorite boxers (chronological order): 2013 Subaru Legacy ........ 2.5L H4 2011 Subaru Outback ...... 2.5L H4 2003 Honda Goldwing ...... 1.8L H6 1960 Porsche 356 S90 ..... 1.6L H4 1942 Muhammed Ali ........ 6'3" H2 |
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#8 (permalink) | |
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Registered User
Join Date: Jul 2012
Car: 2013 Outback 2.5 Premium 6mt
Posts: 178
Feedback Score: 0 reviews
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Quote:
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#9 (permalink) |
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Registered User
Join Date: Sep 2012
Location: near san francisco
Car: white 2013 subaru outback 2.5i 6 speed manual
Posts: 39
Feedback Score: 0 reviews
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So maybe I wrote the question wrong? Or maybe you read it wrong. I was saying I don't care about mpg so much. Im perfectly happy with what im getting and 75-80 is pretty slow for my freeway at 6am. youll probably get flashed and flipped off if you go any slower. My question is the shift points and is it cool to go above 3k. At the top of 4th going up hill around 29-3k the car starts pulling nicely . Is it ok to take it to 3500+? I just want to take care of my new investment and don't want to harm the engine. Normally I shift in the 28-31k range. And has anyone mastered the hill assist. I find it weird and can't get the hang of it. But I am enjoying the new world of stick shift..
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#10 (permalink) | |
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Registered User
Join Date: Jan 2012
Location: Philly 'burbs
Car: 2013 Legacy Limited CVT Car: 2011 Outback Prem 6MT Car: 2006 Mazda MX5 GT 6MT Bike: 2003 Honda GL1800ABS ** Reunite Gondwanaland! **
Posts: 1,369
Feedback Score: 0 reviews
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Quote:
throttle response is a safety factor -- I don't let it dip below 3000 even at steady speed on a flat road. For even moderately spirited driving I routinely shift between 4000 and 5000 -- and often wind it up to near redline. FWIW, I get mid-20s mpg "just drivin' around" on suburban/rural PA roads -- and high-20's at 75-ish mph on interstate highways (that's about the ONLY place that it ever gets into 6th gear). Physics 101: At 3000 rpm, you don't have a 170 hp engine -- it's no more than 95 hp. At 2000 rpm, you have less than 60 hp. ...rpms are your friends, Looby
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All-time favorite boxers (chronological order): 2013 Subaru Legacy ........ 2.5L H4 2011 Subaru Outback ...... 2.5L H4 2003 Honda Goldwing ...... 1.8L H6 1960 Porsche 356 S90 ..... 1.6L H4 1942 Muhammed Ali ........ 6'3" H2 |
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