I bought my 4th gen lude 2days ago, so naturally it was fine when i went to see it. now 2days later it started blowing whiteish blue smoke. should i do a compression check to see if its the head gasket? Im doing a dip stick check to see if theres coolant in the oil a bit later tonight, oil light isnt on. If it is the head gasket how much is it to fix both by myself and for someone else to (which prob wont happen cuz they over charge)