Ascent Towing

Discussion in 'Subaru Ascent' started by silvertop, Jul 9, 2022.

  1. silvertop

    silvertop

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    Location:
    Traveling up & dwn eastern seaboard
    The Ascent has a 5000lb towing capacity but being a mid-sized SUV brings challenges to towing heavy loads. Things like Braking Controllers, Hitches, Wiring, Load Leveling, Sway Control, Gas mileage, Turning Radius, etc.

    My current problem is gas mileage. Unfettered I get a great 24 MPG highway on level land down in Florida but when I tow my 4600lb travel trailer I am getting 9.5MPG when I travel at 70MPH in cruise control.

    I have made some 12 x 900 mile trips now and the mileage is fairly consistent. I complained about it to my service guy but they said if there wasn't a code or warning there was nothing they could do. I tried changing to manual shifting but got no significant difference.
     
    Last edited: Jul 9, 2022
    silvertop, Jul 9, 2022
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  2. silvertop

    Bo T

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    That is fair gas mileage. The wind resistance from your trailer could be a culprit. Try driving the trip at 60 mph.
     
    Bo T, Jan 21, 2023
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  3. silvertop

    Ecmbuster

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    Towing at 70MPH with a 4600lb travel trailer?
    The trailer acts like a sail or parachute. It is added resistance and load on the engine management system.
    Add head winds during a trip, expect mileage to increase.
    Pay attention to this as well.
     
    Ecmbuster, Jan 22, 2023
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  4. silvertop

    Bo T

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    Did you mean mileage to decrease with a headwind?
     
    Bo T, Jan 22, 2023
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  5. silvertop

    Ecmbuster

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    Yes, a "typo" error while convincing my dog to stop dragging his food bowl under the table.
     
    Ecmbuster, Jan 22, 2023
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