you should be ok if there was residual oil in there. By the way, grab your self a jegs proportioning valve so you can adjust brake bias. With out the abs being your valve, most of the power goes to the rear and gets scary fast. Spongy brakes solution is to bleed them again until all the air is out, also you can turn the rod on the brake booster out some more to get more pedal pressure..that is what i had to do on my truck and now i can lock all 4 tires.