I noticed my coolant is below the min. line in the overflow bottle. In the shop manual it says to use BRP coolant or some "specifically designed for aluminum engines"…..don’t really want to drive to dealer for coolant. What do I need to get? And can I get it at autozone or o’reilys? …the coolant in mine now is orange not the usual green color…….also can’t low coolant cause my engine to run cooler?