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Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by k5-newbie, Jul 10, 2004.
like the post says...what fluid???
Plain ol' ATF. /forums/images/graemlins/thumb.gif
What about a 203?
I believe the 203 uses 10-30W motor oil.
Remove the filler plug and stick your finger inside. If its oil, its 10-30, if its ATF, then ATF.
Im pretty sure its 10-30W oil
203-10w40 for full time, GL-5 for part time
Thanks guys. Much on the appreciation scale. /forums/images/graemlins/peace.gif
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