Just a quick one, how many litres are generally in the coolant system.
I have bought some radiator relief to put in and I need to mix it as 1 quart to 15quarts.

ta!
g

 

50%COOLANT AND SOFT WATER NEEDED.

 

Have you lost your owner's manual? The coolant capacity is approx 7 litres. I am going to drain my coolant this weekend and run just a bottle of RedLine WaterWetter + 1L of Castrol coolant concentrate and the rest distilled water.

 

JAN Shim,

I own a STi5 and unfortunately I can't read japanese
7 litres is that the same for all models?

ta

 

Don't STI models have a thicker radiator than the regular WRX / UK models ?

Thanks

Gavin