Hi, guys. My girlfriend has a 2006 Toyota Rav4 V6 3.5 engine car. I noticed yesterday that the coolant reservoir is empty so I have to get some coolant and fill it out. I have the pink colored coolant so can you guys recommend me a brand that I can order and fill out what is needed. Also I noticed that there a a lot of black tiny particles at the bottom of the reservoir, I've read that the pink stuff is actually dissolving the gaskets, is that true and should I get it in a shop for a flush and then probably fill out completely with new coolant. I will upload pictures of the black particles later. I am also wondering if the coolant is in a nice color and if it looks like it doesn't need a change, would it be a good idea to drain it and filer it so it clears out from the small particles ? Does the car work well with green coolant as well, is it better for the gaskets, what would you guys recommend me to do ?