Changed my oil w/ o a hitch , purchased the 6.5 liters of G12 coolant/ anti - freeze , drained all water put in half gallon of distilled water cranked for a second or 3 till it ran clear, added the G12 but it only took 5 liters of the G12 . The manual says it holds 11.5 all together .... am I in trouble? It runs cool no problem and only the ( big fan comes on , when does the small auxiliary fan come on ?