|
I have had good luck using a blue Ford orifice tube, specify one for 1990 full-size Bronco. It is somewhat smaller(orifice size) so it produces a lower evap temp. 2 & 1/2 cans is a good starting point, may not need much more than that. They are not all the same, but they all interchange- there is white,red,blue etc all diff orifice sizes for diff specs. Oil will disperse thru entire system. Hope this helps. Brian
|