recommended coolant

[Pgtips]

mine looks brown too, i think its the black header tank (looks like rust colour) but when i bled the matrix, i had a torch on the coolant and it was a fresh pink colour coming out of there, so i think its just its reaction with the black of the header tank behind it.

It's an optical illusion created by the black plastic expansion bottle which makes it look like a brown rusty colour! Mine looked the same after using the pink coolant so sucked some out using a turkey baster & was still bright pink  so decided to put some in a black spray can top to compare & it looked like a rusty brown colour just like it does in the expansion bottle !