My coolant fluid is now 3 years old.
Might be time , to change it now. although there is no sign of contamination.
I have a unopened 5 Litres can of (modern) G12 pink coloured coolant fluid,
The G12 is supposed to be a lifetime coolant and is stock on new VW,Audi cars..
the bike has regular green fluid (G11) in it. Can I changed it with pink G12
(flush before adding pink )