Err-hm. This STi thingy has a bottle of water in the boot. It's in case the intercooler gets thirsty on a hot day, so I'm told ;) And another button to press :o

Seriously tho'.. Is there any point in using it other than on a hot-weather trackday?? At what rate does the water get used?? Is any benefit (subjectively) noticeable?

TIA

Phil

depends how hard you are pushing it.

when in auto mode (not sure if you have this) it wastes for temp to rise above a certain value (think it might be 45) it then sprays for 10 secs. If temp is still high it does it again, etc and so on.

On track I was using up all four litres in about two/three laps.

Worth a read.