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Volvo XC90 Real World MPG

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Comments

  • jim314jim314 Posts: 491
    19.0 mpg (computer 20.7 mpg) 6-22-2008 with Shell 93 octane
    21.8 mpg (computer 23.4 mpg) 6-23-2008 with Shell 91, highway
    24.2 mpg (computer 25.5 mpg) 6-23-2008 with Shell 91, last leg of 609 mi road trip, non interstate four and two lane highways, and some at slow speed in state parks

    Overall on two day road trip: 608.7 mi / 26.3 gal = 23.1 mpg.

    Overall fuel use to date since purchase: 11,991 mi / 630.9 gal = 19.0 mpg.
  • qbrozenqbrozen Posts: 17,536
    Filled my wife's this morning and calculated the previous tank to 21.77 mpg on 89 octane. Very happy with that result, although (at .87 of a gallon higher than our previous record) I am doubting its accuracy. We'll see what the future holds.

    '13 Stang GT; '15 Fit; '98 Volvo S70; '14 Town&Country

  • jim314jim314 Posts: 491
    16.0 mpg (computer 17.4 mpg) 7-5-2008 with Shell 89+91 octane => 91 octane, mostly short trips in city
    22.8 mpg (computer 23.9 mpg) 7-6-08 with Shell 93, highway
    26.5 mpg (computer 28.4 mpg) 7-7-2008 with Shell 93, 330.9 mile leg of 659 mi road on trip, uncrowded state highways, rolling hills at 45 mph to 55 mph to 60 mph (a/c off, 3 windows open for old dog who likes to look out the window), and some interstate mostly at 60-65 mph, windows closed a/c on.

    Overall on two-day, two-night camping trip: 659 mi / 26.89 gal = 24.5 mpg.

    Overall fuel use to date since purchase: 12,853 mi / 670.6 gal = 19.2 mpg.

    The last result suggests that the mpg of the XC90 3.2 will increase strongly with lowering of the speed. Steady driving on interstate highways (but not extreme hypermiling) at 60 mph, with nothing on roof might give ~26 - 27 mpg.
  • jim314jim314 Posts: 491
    13.5 mpg (computer 14.2 mpg) 7-17-2008 with Shell 93 AKI, all very short trips 76.1mi/5.656 gal

    Begin 2631 mile road trip (10.3 mi on tank) Dallas TX to Wisconsin to Indiana to Dallas, 2631 mi / 107.2 gal = 24.5 mpg, 60 to 65 to 70 mph, two people and 3 dogs with camping gear, nothing on roof, most driving by me (attentive to fuel economy but no hypermiler), some by my wife (much less atttention to fuel economy, keeps 8 second interval between her vehicle and the next one ahead), some by brother (low attention to fuel economy).

    24.5 mpg (computer 26.0 mpg, 46 mph) 7-19-2008 with Shell 93, highway, park roads
    26.2 mpg (computer 27.6 mpg, 51 mph) 7-20-2008 with Shell 91, 404 mi highway
    25.5 mpg (computer 26.6 mpg, 54 mph) 7-22-2008 with generic 93, 451 mi highway, touring urban
    23.6 mpg (computer 24.3 mpg, 31 mph) 7-25-2008 with generic 93, urban touring
    23.4 mpg (computer 24.3 mpg, 35 mph) 7-26-2008 with generic 93, highway and Chicago traffic jams
    24.9 mpg (computer 26.5 mpg, 47 mph) 7-27-2008) with 92 AKI, highway, touring
    24.1 mpg (computer 25.6 mpg, 42 mph) 7-28-2008) with Shell 93, highway, touring

    Ave mpg to date since purchase 15570 mi / 783.5 gal = 19.9 mpg
  • jim314jim314 Posts: 491
    http://www.nytimes.com/2008/08/03/automobiles/03OCTANE.html

    I will still use a minimum of 91 octane AKI in our non-turbo Volvos. Suppose the knock sensor fails? The slight savings in fuel costs are not worth it to me. Of course if I would stop at a station in the boonies I would not hesitate to use 87 to get me where I needed to go.

    89 octane might be the best fuel for a driver (like me) who doesn't push the vehicle to anywhere near its upper power levels. This would provide a safety factor against the fuel being below 87 octane, and save some money. I'm going to think about it.

    Lately I have been using 93, which bugs me. My area stocks 87, 89, and 93, and I used to deliver equal vols of 89 and 93 to get 91. But recently I have had problems with the fuel pumps not allowing me to dispense two different fuels in quick succession on my credit card.
  • jim314jim314 Posts: 491
    2007 Fuel consumption records (gas pump) for 2007 Volvo XC90 3.2 FWD, purchased April, 2007.

    Note: Mpg values of 16 mpg and below were for the entire tank consumed on very short urban trips. The higher mpg for 2008 could be real improvement after breakin, but is more likely due to a smaller proportion of very short urban trips and changes in driving practices in an attempt to get the best possible fuel economy. Unless otherwise stated the fuel is generally premium, 91 or 93 octane AKI. Tires are 235/65-17 Michelin 4x4 Synchrone (max infl pressure 51 psi) inflated to 40 psi. Driving style is careful, but no drafting on semis or other "hypermiling" techniques except keeping speed as constant as possible and generally not exceeding 70 mph.

    17.8 mpg 5-02-2007
    13.0 mpg 5-22-2007
    17.8 mpg 5-28-2007

    Road trip: Dallas to Gulfport MS and return
    22.8 mpg 5-30-2008 on road trip with 91 octane AKI from previous fillup
    21.6 mpg 6-02-2007 on road trip with 93 octane from prev fillup
    22.7 mpg 6-04-2007 on road trip
    23.8 mpg 6-05-2008 on road trip
    25.7 mpg 6-05-2007 after last leg of road trip, all interstate hwy, odometer 2322 mi; Ave mpg for road trip: 1550 mi / 66.75 gal = 23.2 mpg.

    18.7 mpg 6-14-2007

    15.2 mpg 7-03-2007
    16.0 mpg 7-16-2007
    16.1 mpg 7-25-2007

    16.9 mpg 8-10-2007
    14.9 mpg 8-24-2007

    16.6 mpg 9-12-2007

    12.9 mpg 10-02-2007
    21.4 mpg 10-08-2007
    20.1 mpg 10-20-2007
    19.9 mpg 10-24-2007

    14.9 mpg 11-10-2007
    20.7 mpg 11-16-2007
    19.7 mpg 11-28-2007

    21.8 mpg 12-03-2007
    19.8 mpg 12-11-2007
    18.9 mpg (computer 19.3 mpg) 12-22-2007
    20.5 mpg (computer 21.4 mpg) 12-23-2007
    22.6 mpg (computer 22.8 mpg) 12-30-2007

    (Overall mpg since purchase: 7251 mi / 385.2 gal = 18.8 mpg. First oil change 12-28-2007, to Mobile1 0W-40 "European Car Formula", but no definite evidence that this improved highway mpg. But this oil may reduce wear during warmup, and may slightly improve mpg during the warmup periods of short urban trips.)



    2008 Fuel consumption records (gas pump results) for 2007 Volvo XC90 3.2 Front wheel drive, purchased April 2007.

    20.7 mpg (computer 21.4 mpg) 1-8-2008 with Shell 93 octane AKI
    19.5 mpg (comp 20.3 mpg) 1-27-2008 with Shell 93 octane
    17.8 mpg (comp 18.0 mpg) 2-17-08 with Shell 93 octane
    15.5 mpg (comp 16.2 mpg) 3-7-08 with Shell 93 octane
    17.3 mpg (comp 18.0 mpg) 3-23-08 with Shell 89 + 93 => 91 octane
    16.6 mpg (comp 17.5 mpg) 4-10-08 with Shell 89 + 93 => 91 octane
    19.4 mpg (comp 20.5 mpg) 4-18-08 with Shell 89 + 93 => 91 octane
    19.1 mpg (comp 19.8 mpg) 4-29-08 with Shell 89 + 93 => 91 octane
    20.2 mpg (computer 20.8 mpg) 5-10-2008 with Shell 89+93 => 91 octane
    21.4 mpg (computer 22.4 mpg) 5-13-2009 with Shell 89+93
    19.5 mpg (computer 20.9 mpg) 5-23-2008 with Shell 89+93 => 91 octane
    15.0 mpg (computer 16.0 mpg) 6-14-2008 with Shell 93, all urban short trips
    23.5 mpg (computer 24.9 mpg) 6-16-2008 with Chevron 93, includes 361 mi road trip much of which was urban, some at slow speed in state park

    Overall fuel economy to date since purchase 11,244 mi / 597.1 gal = 18.8 mpg.

    19.0 mpg (computer 20.7 mpg) 6-22-2008 with Shell 93 octane
    21.8 mpg (computer 23.4 mpg) 6-23-2008 with Shell 91, highway
    24.2 mpg (computer 25.5 mpg) 6-23-2008 with Shell 91, last leg of 609 mi road trip, non interstate four and two lane highways, and some at slow speed in state parks

    Overall on two day road trip: 608.7 mi / 26.3 gal = 23.1 mpg. Overall fuel use to date since purchase: 11,991 mi / 630.9 gal = 19.0 mpg.

    16.0 mpg (computer 17.4 mpg) 7-5-2008 with Shell 89+91 octane => 91 octane, mostly short trips in city
    22.8 mpg (computer 23.9 mpg) 7-6-08 with Shell 93, highway
    26.5 mpg (computer 28.4 mpg) 7-7-2008 with Shell 93, 330.9 mile leg of 659 mi road on trip, uncrowded state highways, rolling hills at 45 mph to 55 mph to 60 mph (a/c off, 3 windows open for a dog who likes to look out the window), and some interstate mostly at 60-65 mph, windows closed a/c on. Overall on two-day, two-night camping trip: 659 mi / 26.89 gal = 24.5 mpg. Overall fuel use to date since purchase: 12,853 mi / 670.6 gal = 19.2 mpg.

    13.5 mpg (computer 14.2 mpg) 7-17-2008 with Shell 93 AKI, all very short trips in town only 76.1mi / 5.656 gal


    Begin 2631 mile road trip Dallas to Milwaukee to Indiana to Dallas.
    24.5 mpg (computer 26.0 mpg, 46 mph) 7-19-2008 with Shell 93, highway, park roads
    26.2 mpg (computer 27.6 mpg, 51 mph) 7-20-2008 with Shell 91, 404 mi highway
    25.5 mpg (computer 26.6 mpg, 54 mph) 7-22-2008 with generic 93, 451 mi highway, touring urban
    23.6 mpg (computer 24.3 mpg, 31 mph) 7-25-2008 with generic 93, urban touring
    23.4 mpg (computer 24.3 mpg, 35 mph) 7-26-2008 with generic 93, highway and Chicago traffic jams
    24.9 mpg (computer 26.5 mpg, 47 mph) 7-27-2008) with 92 AKI, highway, touring
    24.1 mpg (computer 25.6 mpg, 42 mph) 7-28-2008) with Shell 93, highway, touring

    Average mpg on trip 2631 mi / 107.2 gal = 24.5 mpg, highway speeds 60 to 65 to 70 mph, two people and 3 dogs with camping gear, nothing on roof. Average mpg to date for 2008: 8319 mi / 398.3 gal = 20.9 mpg. Average mpg to date since purchase 15570 mi / 783.5 gal = 19.9 mpg. Second oil change at 15600 mi with Mobile1 0W-40 European Car Formula. The engine oil level was still at full before the change suggesting that the engine uses no oil over 8000 mi.
  • jim314jim314 Posts: 491
    Round trip Dallas TX to Nashville TN Dec 5 - Dec 9 with some day trips in Nashville and side trips on the way home. Tires (235-65/17) inflated to 38 psi before trip.

    Total distance 1640 mi / 70.83 gal premium 93 octane => 23.2 mpg.
  • Round trip from Philly to Disney, total distance 2100 miles with 21.5 mpg on average.
  • jim314jim314 Posts: 491
    Is this the computer value or did you calculate it from odometer readings and fuel pump volumes?
  • This is the computer reported one.
  • jim314jim314 Posts: 491
    Dallas TX to Nashville TN four day round trip; 2 days on highway and 2 days locally in Nashville: 1466 miles / 59.84 gal premium = 24.5 mpgUS (9.6 L/100km).

    Tires 235/65-17 Michelin 4x4 Synchrone inflated to 37 psi. About 70 mph on the interstate hwy.

    Previous two tanks for all city short trips were 14.1 mpg and 16.0 mpg.
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