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  1. S

    Synthetic Oil ??

    Stupid question # 2. I'm presently using Castrol 20 W 50 GTX " Dino " oil. If I switch to 20 W 50 Amsoil,will I get better lubrication,Lower wear,and Lower oil pressure ?? Would lower oil pressure really matter,if you're using good synthetic ? Thanks.
  2. S

    Oil Pressure.

    I'm new here...so be patient. 1st dumb question.....I've just had the bottom end of my motor re-built,and the oil put in the car was Castrol 20W50 GTX.I'm not entirely happy with the indicated oil pressure. I have some 20W50 AMSOIL. Can I use it,and will it increase / decrease oil pressure,or...
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