Mayhems Pastel Coolant Concentrate, 250mL, Yellow

This review is for Mayhems Pastel concentrate coolant 250ml Sunset Yellow. I have used this product for years in my daily driver Steeler Nation. There have been several iterations, but this has been a solid performer throughout. This Sunset Yellow was used to create a custom color with a few drops of red coolant dye.I've tried some other brands of coolant, particularly the various pastel coolants; they might look good for a few weeks but over time the pigments will separate and either clog up in the water blocks, or just fade into yuck. Like puke green yuck or sickly gray sludge.The Mayhems coolant just outlasts anything else I've tried. So for me, it means I can go 6 months without draining the loop in my main rig I use for work and gaming. Is it perfect? Well, my loop has been running 3 months and I can tell its faded just a little but its likely I just need a couple more drops of red dye. But its been performing really solid, for a product that's been on the market for 10 years its a winner.