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np203 fluid?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by MattK, Aug 7, 2005.

  1. MattK

    MattK 1/2 ton status

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    alright ive been searching and ive read several different answers as far as what fluid to use in the np203. ive seen gear oil, 10w30 and ATF...which is it for the stock 203?
     
  2. ankarback

    ankarback 1/2 ton status

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    Use 10W30 or 10W40 engine oil. Gearoil will kill the oilpump in it.
     

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