2011 Genesis Coupe. The recommended coolant change interval is 5 yrs for the first and every 2 years after. I'd really like to not have to change coolant every 2 years but there's zero details at all regarding the green coolant that the dealer sells.
The ioniq5 apparently needs a $1000 CAD low conductivity coolant replacement every 3 years. It costs ~$60/liter for 13 liters!!! EV6 uses regular coolant
If you think that’s bad, Toyota lists a special coolant for the fuel cell stack on a Mirai. Sold only in 20L kits for $1300 list. The inverter is similar to a Prius/Corolla Hybrid or Lexus HS/CT and takes regular Toyota pink.