Ran out of screenwash this morn, just as I was about to set off on a 160mile motorway journey. Completely empty.
Stopped off at dealers and bought 3l of the stuff, and just poured it in. Didn't bother to check dilution ratios. There's probably only 2l in there now.
Anyway, looking in the manual, there's nothing on dilution ratios. But it does mention to heat the windscreen up first if using the screenwash in cold weather. Otherwise the windscreen freezes!
On the bottle, it shows a pic:
Is a 'drop' a litre of water?
I've been using neat until I saw the label and it said "concentrate"!!!