gas mileage 1999 s-70

Discussion in 'Volvo S70' started by Say not the Struggle nought Availeth, Aug 9, 2004.

  1. Bought Volvo s-70 GLT in May.

    over about 3000 miles got 30 mpg

    service light came on, so

    changed oil, air filter, oil filter, now gas mileage is about 25 mpg?

    note, this is the insert type oil filter with plastic housing.

    What could be the cause?

    j.
     
    Say not the Struggle nought Availeth, Aug 9, 2004
    #1
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  2. Say not the Struggle nought Availeth

    squirrely Guest

    get that filter back

    surprised u got 30 mpg consistently. 25 26 maybe 27 for my car 1998
     
    squirrely, Aug 21, 2004
    #2
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  3. Say not the Struggle nought Availeth

    Al Carlin Guest

    I have a '99 s-70 awd with 62k miles. The differential is going out and I
    am, needless to say very unhappy. Have others with similar vintage s-70 awd
    had similar experience? The dealer seems willing to try to pressure Volvo
    USA to cover the cost of parts--is this fair enough?
     
    Al Carlin, Sep 11, 2004
    #3
  4. Say not the Struggle nought Availeth

    Bob Noble Guest

    Hi, Al - - -

    The wife's car is a '98 V70XC, but the awd components remained unchanged
    for '99. The mileage suggests a contributing problem of some kind -
    such as inadequate lubrication. *If* your friendly Dealer has been the
    Service provider, or if you can demo that the vehicle has been seen by
    someone who would notice a leak, your chances ought to be on the good
    side. It's pretty sure, though, that VNA is going to want some
    continuity of Service to resolve this problem.

    I've been assuming that the differential in question is the one in the
    rear. If it's the front diff, there's even less excuse for premature
    death. The bevel gear (a part of the AWD system) will fail before
    problems in the rear can cause front side failure.

    Good luck.

    bob noble
    Reno, NV, USA
     
    Bob Noble, Sep 13, 2004
    #4
  5. Say not the Struggle nought Availeth

    AB Guest

    Look at www.brickboard.com and search for 'bevel gear' .... I presume this
    is the one you are referring too? Its the centre differential (aka the
    transfer box) and seems to be a known issue....

    Alastair
     
    AB, Sep 15, 2004
    #5
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