dont just top up coolant... only top up with water. 2 different coolants mixed together can become and acid and eat away at ur hoses and the channels in ur radiator..

ok with the ba if its still under warranty the r135 must be used to maintain a factory warranty . if its only a little bit down distilled water may be used but onl;y in samll quantities. just take it down to the ford dealer ship and ask if you can get it topped up as alot of the techs there will have heaps sittin under their bench i know when i worked there i had up to 20l sittin under my bench so try that and the mexican,affrican thing is true we had a affrican or something guy couldnt say a word of english working on gts scary s**t i tell you