Well, I've got 2,342 miles on my rex now, I've had it since November. I noticed today that my Engine Coolant is below the L marking. Do you guys refill this urself, or go to the dealership? Reason I ask cuz the guys at my dealership are kinda aholes, so I would rather do this myself since it seems relatively simple. What type of coolant would anyone recommend, or have u guys used in there?