I'm planning on flushing the coolant. RAVE only mentions preparing the coolant to the required concentration, so adding pre-mixed coolant is going to end up with less concentration as it won't all drain out. It also states 4 litres of coolant at a concentration of 50%, yet the system takes 13 litres. If I flush with clean water and add 6.5L of coolant concentrate and top up with water will this be ok?
