i know this may sound like im a noob, but im just curious with the mopars...... what type of coolant can i run in it? i was planning on buying the premixed Prestone kind ( i think its green in color ) or should i buy mopar brand? i doubt it really matters as long as its that 50/50 ratio, am i correct on this? and secondly is there an easier way to filling the radiator, i.e. remove the driver side headlamp unit and fill from there or just fill using the res.?