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1989 auto only getting 20.38 MPG!!

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  • #1

    1989 auto only getting 20.38 MPG!!

    Hey there... My 1989 auto is only getting 20.38 MPG..

    The engine is fairly sick, there's a tick while I'm driving and it's either leaking oil or burning it... Every month or so I have to put 1/4th of a gallon of oil into it... I'm fairly sure I'm not getting enough oil pressure.

    Any suggestions?
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  • #2
    What is the odometer reading? I will bet dollars to doughnuts that you either have compression issues, or valve seal issues.
    http://www.cardomain.com/id/hawkdoc60

    01 Chevy Impala 9C1 police package "Unnamed yet". 154K
    88 LX 5 speed "Silver PHOENIX" Currently being rebuilt inside and out. 400K
    88 L 4 speed "Cherry Bomb" saved from the car crusher just in time. 186K
    06 Ford F-150 Pickup Replacement for my 2001 Impala Cop Car that lunched its engine.

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    • #3
      ^yep, compression check is first on the list. my auto did the same thing

      -"Hairlipstiva" 1991 GL 5spd (swapped from an auto), rolling on Enkei 14x6 +38 with 195/45/14 Toyo's, Jensen MP5720 CD deck, tach install, LED strip in cluster, down position rear wiper, FMS springs, Gabriel shocks on 4 corners, Acura Integra short shifter
      -Escort GT 91 donor car with BP, G5M-R tranny to be dropped in the little guy...
      -Aspire brake swap COMPLETE!
      https://www.wunderground.com/persona...?ID=KOKOWASS38

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      • #4
        I've got 250,000 KM on it soo..

        155,342.7 miles.

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        • #5
          With the mileage on the car, I would definitely look at compression testing it.
          http://www.cardomain.com/id/hawkdoc60

          01 Chevy Impala 9C1 police package "Unnamed yet". 154K
          88 LX 5 speed "Silver PHOENIX" Currently being rebuilt inside and out. 400K
          88 L 4 speed "Cherry Bomb" saved from the car crusher just in time. 186K
          06 Ford F-150 Pickup Replacement for my 2001 Impala Cop Car that lunched its engine.

          Comment

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